Chemistry 6

Chemistry 6

Q-1 Which is the temperature at which Volume of gas is zero?
(a) –2730c
(b) –3730c
(c) –1550c
(d) None

Q-2 When Volume is directly proportional to temperature, then it is
(a) Charles law
(b) Boyle’s law
(c) Avogadro’s law
(d) None

Q-3 Who gave Avogadro’s Law?
(a) Romani Avogadro
(b) Amedeo Avogadro
(c) Ninjal Avogadro
(d) None

Q-4 In PV = nRT, Here n & R is
(a) Number of moles & Universal gas constant
(b) Number of Molecule & Gravitational Constant
(c) a and b
(d) None

Q-5 What is the value of R, when pressure is Nm-2?
(a) 8.314 JK-1 mole-1
(b) 8.322 JK-1mole-1
(c) 8.335 JK-1 mole-1
(d) None

Q-6 At which temperature Gases tends to be become ideal?
(a) Absolute temperature
(b) Boyle’s Temperature
(c) a and b
(d) None

Q-7 For Negative deviation, what is value of Z
(a) =1
(b) > 1
(c) <1 br=""> (d) None

Q-8 What is melting point of water?
(a) 273
(b) 315
(c) 00c
(d) None

Q-9 What is melting point of NaCl?
(a) 1075
(b) 1076
(c) 1077
(d) 1035

Q-10 Which are True Solids are there?
(a) Crystalline Solids
(b) Amorphous Solids
(c) Super Cooled Solids
(d) None

Q-11 How many types of solids are there?
(a) 2
(b) 3
(c) 4
(d) 5

Q-12 Which is true?
(a) Crystalline Solids are of 4types
(b) Crystalline Solids are of 5 types
(c) Crystalline Solids are of 6 types
(d) Crystalline Solids are of 9 types

Q-13 H2 is
(a) Polar
(b) Non-Polar
(c) Both
(d) None

Q-14 H2O is
(a) Polar
(b) Non-polar
(c) a and b
(d) None

Q-15 NaCl is a example of which types of crystal?
(a) Covalent Crystal
(b) Ionic Crystal
(c) Metallic Crystal
(d) Molecular Crystal

Q-16 For H2, the value of z is
(a) >1
(b) <1 br=""> (c) =1
(d) None of these

Q-17 What is the Value of Critical Temperature of H2
(a) 33.5
(b) 33.2
(c) 34.5
(d) 15

Q-18 What is critical Pressure of O2?
(a) 50.4
(b) 50.5
(c) 50.6
(d) 50

Q-19 What is critical Volume of Ammonia?
(a) 0.0703
(b) 0.756
(c) 0.791
(d) 0.7913

Q-20 Ư is the symbol of
(a) Uranium
(b) Unadium
(c) Umadium
(d) None

Q-21 H2 gas is also called
(a) Permanent gas
(b) Diffused gas
(c) a and b
(d) None

Q-22 Molar mass of H2O
(a) 18
(b) 19
(c) 20
(d) 21

Q-23 What is critical temperature of CO2?
(a) 304K
(b) 305K
(c) 315K
(d) 351K

Q-24 Why urea have sharp M.P.
(a) Because of Crystalline Solids
(b) Because of Amorphous nature
(c) a and b
(d) None

Q-25 Diamond belong to which Crystalline solids
(a) Ionic Crystal
(b) Covalent crystal
(c) Metallic crystal
(d) None

Answers:

1. a
2. a
3. b
4. a
5. a
6. b
7. c
8. a
9. c
10. a
11. a
12. a
13. b
14. a
15. b
16. a
17. b
18. a
19. a
20. a
21. a
22. a
23. a
24. a
25. b

Chemistry 5

Chemistry 5

Q-1 Mercury Barometer is used to measure?
(a) Atmospheric Pressure
(b) Weight
(c) Temp
(d) None

Q-2 1C =?
(a) 103dm3
(b) 10-2dm3
(c) 1dm3
(d) None

Q-3 1 atmosphere =?
(a) 1.01325 bar
(b) 1.014567 bar
(c) 1.015679 bar
(d) 1.234567 bar

Q-4 Monometer is used to find (a) Pressure exerted by a highly viscous Liquid
(b) Pressure exerted by a gas
(c) Both a and b
(d) None

Q-5 When the temperature is 1000c on Celsius scale, Then what will be an Fahrenheit scale?
(a) 1250
(b) 1800
(c) 1900
(d) 2000

Q-6 PV = nRT, it is
(a) Ideal Gas equation
(b) Sperios equation
(c) Vander Wool’s equation
(d) None

Q-7 What is electron affinity of Noble gases?
(a) 0
(b) 1
(c) 3
(d) 4

Q-8 In Sp3 hybrid orbital, which type of arrangement in there
(a) Planar arrangement
(b) Tetrahedral arrangement
(c) a and b
(d None

Q-9 What is the shape of Ammonia molecule?
(a) Pyramidal
(b) Bipyramidal
(c) Triangular
(d) None

Q-10 At 277k Density of water is
(a) 0
(b) 1
(c) Max.
(d) Min.

Q-11 What is the value of entropy of pure substance at zero Kelvin?
(a) 0
(b) 1
(c) 2
(d) 3

Q-12 When ΔG = 0, then it shows that the process is
(a) Spontaneous
(b) Non Spontaneous
(c) Equilibrium
(d) None

Q-13 Oxygen is a
(a) Diatomic gas
(b) Triatomic gas
(c) Tetratomic gas
(d) None

Q-14 Which is formula of Freon?
(a) CF2Cl2
(b) CF3Cl3
(c) CFCl2
(d) None
Q-15 Rock solt is a important ore of
(a) Sodium
(b) Calcium
(c) Chlorine
(d) None

Q-16 Carnallite is an ore of
(a) K
(b) P
(c) N
(d) C

Q-17 Duralumin is used for making
(a) Air ships
(b) Furniture
(c) Train
(d) None

Q-18 In magnalium, what is % of Aluminium?
(a) 98%
(b) 90%
(c) 92%
(d) 100%

Q-19 Fan making statue which alloy is used
(a) Bronze
(b) Solder
(c) Pewter
(d) None

Q-20 For making Bells which metal is used
(a) Bell metal
(b) Solder
(c) a and b
(d) None

Q-21 Pbo is
(a) Litharge
(b) Chrome yellow
(c) Lead Tetraethyl
(d) None

Q-22 What is value of C in steel?
(a) 0.4 to 1.5%
(b) 10%
(c) 15%
(d)20 %

Q-23 Fe3O4 is
(a) Hematite
(b) Magnetite
(c) Spathic are
(d) None

Q-24 In 20 carrot god, how many parts have gold are there
(a) 20
(b) 21
(c) 23
(d) 25

Q-25 Cu2S is ore of
(a) Copper
(b) Mg
(c) C
(d) N

Answers:

1. a
2. c
3. a
4. b
5. b
6. a
7. a
8. b
9. a
10. c
11. a
12. c
13. a
14. a
15. a
16. a
17. a
18. a
19. a
20. a
21. a
22. a
23. b
24. a
25. a

Chemistry 4

Chemistry 4

Q-1 What is the unit of pressure?
(a) Pascel
(b) Joule
(c) Watt
(d) H2

Q-2 Newton is the unit of
(a) Force
(b) Pressure
(c) Temp.
(d) None

Q-3 1 hour =?
(a) 3500 sec
(b) 3600 sec
(c) 3800 sec
(d) 3100 sec

Q-4 What is 450 in Kelvin
(a) 318.15k
(b) 300k
(c) 315k
(d) 311k

Q-5 0.64 A0 in meter will be
(a) 64 × 10-10 m
(b) 65 × 10-10 m
(c) 66 × 10-10 m
(d) None

Q-6 Air is a
(a) Pure substance
(b) Mixture
(c) Compound
(d) None

Q-7 Sodium Chloride is a
(a) Pure substance
(b) Mix.
(c) a and b
(d) None

Q-8 21 Carrot gold is
(a) Mixture
(b) Pure Substance
(c) a and b
(d) None

Q-9 Mixture are of …….. type
(a) 2
(b) 3
(c) 4
(d) 5

Q-10 Gun powder contain
(a) Nitre, Sulphar , charcoal
(b) Soda ash, NaCl
(c) HCl, NaSO4
(d) MgCl

Q-11 WASHING soda is
(a) Na2 CO3
(b) HQ
(c) H2SO4
(d)NaSO4

Q-12 What is atomic mass of He?
(a) 4
(b) 5
(c) 6
(d) 7

Q-13 Isotope have
(a) Some atomic No. but different mass no.
(b) Some atomic No. & Same mass No.
(c) a and b
(c) None

Q-14 What is atomic mass of Fe?
(a) 54
(b) 55
(c) 56
(d) 55.8

Q-15 If atomic mass of oxygen is 16 amu. Then what will be its Gram atomic mass .
(a) 16g
(b) 32gm
(c) 63gm
(d) None

Q-16 6.023 × 1023 particle, it is
(a) Avogadro No.
(b) Whole No.
(c) Rational No.
(d) None

Q-17 At N.T.P. what will be its Molar Volume
(a) 22.4 litre
(b) 22.5
(c) 22.6
(d) None

Q-18 NH4+ is a
(a) Basic Radical
(b) Acid Radical
(c) Compound Radical
(d) None

Q-19 NO2– is a
(a) Acid Radical
(b) Basic Radical
(c) a and b
(d) None

Q-20 If in a reaction we have ↓
Then it means it is
(a) ppt
(b) Solid
(c) Gas
(d) None

Q-21 If in a reaction, There is a ↑, then it means it is
(a) gas
(b) Solid
(c) Liquid
(d) None

Q-22 In NaOH ® Na+ + OH– , the acidity is
(a) 1
(b) 2
(c) 3
(d) ½

Q-23 In HO ® H+ + Q–, then basicity is
(a) 2
(b) 1
(c) 3
(d) 4

Q-24 If N1V1 = N2V2 , then it is
(a) Normality equation
(b) Chemical equation
(c) Equation
(d) None

Q-25 Can we take all the digit in a Number as significant digit?
(a) No
(b) Yes
(c) a and b
(d) None

Answers:
1. a
2. a
3. b
4. a
5. a
6. b
7. a
8. a
9. a
10. a
11. a
12. a
13. a
14. d
15. a
16. a
17. a
18. a
19. a
20. a
21. a
22. a
23. b
24. a
25. a

Solution
5 0.64 × 10-10 m
64/100 m
64 × 10-10 10-2 m
64 × 10-12 m

Chemistry 3

Chemistry 3

Q-1 When we heat oxalic acid, then it gives…….
(a) Formic acid (b) Acetic acid
(c) H2 So4 (d) None

Q-2 Nitroglycerine is active component of -------
(a) Dynamite (b) Dolomite
(c) Acetic acid (d) None

Q-3 By which deficiency of vitamin, night blindness occur --------
(a) B (b) A
(c) D (d) None

Q-4 Vitamin B2 have chemical name --------
(a) Ribonucleic acid (b) Riboflavin
(c) Ribose (d) None

Q-5 Which of the following is a vitamin?
(a) Ascorbic acid (b) RNA
(c) DNA (d) None

Q-6 Which is a hormone?
(a) Insulin (b) Brain
(c) a and b (d) None

Q-7 Hemoglobin transport……. in blood .
(a) Oxygen (b) N
(c) C (d) None

Q-8 Which is called disaccharide ?
(a) Sucrose (b) Fructose
(c) a and b (d) None

Q-9 How many OH group contain in Glucose?
(a) 6 (b) 5
(c) 9 (d) 10

Q-10 When there is a deficiency of iodine then which disease occur?
(a) Beri-2 (b) Cataract
(c) Hernia (d) None

Q-11 Carrot is best source of which vitamin?
(a) B (b) A
(c) D (d) None

Q-12 Which vitamin is also known as sunshine vitamin?
(a) B (b) D
(c) C (d) None
Q-13 Thiamine is also regarded as --------
(a) B2 (b) B1
(c) B (d) None

Q-14 Which of the following is sweetest sugar?
(a) Glucose (b) Fructose
(c) Lactose (d) None

Q-15 Nature of ethylamine is ------------
(a) Square (b) Pyramidal
(c) Triangular (d) None

Q-16 Ants contain which acid ?
(a) Formic acid (b) Benzoic acid
(c) a and b (d) None

Q-17 Which acid is containing in vinegar?
(a) Formic (b) Acetic
(c) Oxalic (d) None

Q-18 Due to presence of which acid lemon is sour?
(a) Citric acid (b) Nucleic acid
(c) Acetic acid (d) None

Q-19 Methy cyanide is-------
(a) Acetonitrile (b) Acetic acid
(c) Formic acid (d) None

Q-20 Acetic acid is………
(a) Strong acid (b) Weak acid
(c) Neutral acid (d) None

Q-21 K2Cr2 O7 is
(a) Potassium dichromate
(b) Pot. triacetates
(c) a and b
(d) None

Q-22 Acetic acid is…………
(a) Not ionized (b) Slightly ionized
(c) a and b (d) None]

Q-23 Which thing is liberated in the process of fermentation.
(a) CO (b) CO3
(c) CO4 (d) None

Q24 CH3 CH2 CH2 OH is
(a) Ethanol –I
(b) Propanol –I
(c) a and b (d) None

Q-25 Carbolic acid is called ------
(a) Phenol (b) Phenyl
(c) a and b (d) None

Answers:-

1(a) Formic acid
2(a) Dynamite
3(b) A
4(b) Riboflavin
5(a) Ascorbic acid
6(a) Insulin
7(a) Oxygen
8(b) Fructose
9(b) 5
10(a) Beri-2
11(b) A
12(b) D
13(b) B1
14(b) Fructose
15(b) Pyramidal
16(a) Formic acid
17(b) Acetic
18(a) Citric acid
19(a) Acetonitrile
20(b) Weak acid
21(a) Potassium dichromate
22(b) slightly ionized
23(a) Co
24(b) Propanol –I
25(a) Phenol

Chemistry 2

Chemistry 2

Q-1 Molecular wt. of N2 is ------------
(a) 30 (b) 28 (c) 40 (d) None

Q-2 H= E + P………..
(a) H (b) V (c) D (d) None

Q-3 Calorimeter is used for measuring?
(a) Heat Changes (b) Water Flow
(c) A andB (d) None

Q-4 Electric & magnetic field are always associated with ----
(a) EM wave (b) Mates wave
(c) A and B (d) None

Q-5 Which waves cannot bass through vaccum ?
(a) Matter wave (b) EM wave
(c) Aand B (d) None

Q-6 In an orbital, how many electrons can accommodate?
(a) 3 (b) 2 (b) 13 (d) 6

Q-7 If l = 400nm them, which is correct.
(a) 4000A0 (b) 15000A0
(c) 2000 A0 (d) None

Q-8 Far l = 400nm, then the colour will be?
(a) Red (b) Violet
(c) Yellow (d) None

Q-9 Wavelength l = 750nm corresponds to?
(a) Red colour (b) Violet
(c) Blue (d) None

Q-10 Which country celebrates its 60th republic day?
(a) Pakistan (b) India
(c) China (d) None

Q-11 Structure of PCl5 is ---------
(a) Bipyramidal (b) Trigonal Bipyramidal
(c) Tetragonal (d) None

Q-12 Oxide of heavy hydrogen is -------
(a) D2O (b) H2 O (c) D3 O (d) None

Q-13 Which is heavy hydrogen?
(a) Deuterium (b) Hydrogen
(c) A and B (d) None
Q-14 O3 is……… reactive then oxygen?
(a) More (b) Less
(c) A and B (d) None

Q-15 When ozone react with Hg then …….. is formed?
(a) Mercury (b) Mercurous Oxide
(c) H2SO4 (d) None

Q-16 From the following which is weakest halogen acid ?
(a) H I (b) HCL
(c) HBR (d) None

Q-17 From the following which is strong halogen acid ?
(a) HCl (b) HF
(c) HBR (d) None

Q-18 Which is used as refrigerant?
(a) CF2CL2 (b) CL2
(c) CF2 (d) None

Q-19 Which is lime stone?
(a) CaCO2 (b) CaCO3
(c) CaCO4 (d) None

Q-20 Which is preservative for milk?
(a) Basic acid (b) Nitric acid
(c) Sulphuric acid (d) None

Q-21 CaCO3 is ore of
(a) C (b) Ca (c) N (d) None

Q-22 CaSO4 2H2 O is ore of -----------
(a) Ca (b) N (c) O (d) None

Q-23 In order to set fractured bone we use --------
(a) POP (b) POC (c) POR (d) None

Q-24 Which is quick lime?
(a) CaO2 (b) CaO (c) Ca (d) Na

Q-25 Na3 ALF6 is formula of
(a) Cryolite (b) Bauxite
(c) Diaspore (d) None

ANSWERS:-

1 (b) 28
2 (b) V
3 (a) Heat Changes
4 (a) EM wave
5 (a) Matter wave
6 (b) 2
7 (a) 4000A0
8 (b) Violet
9 (a) Red colour
10 (b) India
11 (b) Trigonal Bipyramidal
12 (a) D2O
13 (a) Deuterium
14 (a) More
15 (b) Mercurous Oxide
16 (a) H I
17 (b) HF
18 (a) CF2CL2
19 (b) CaCO3
20 (a) Basic acid
21 (b) Ca
22 (a) Ca
23 (a) POP
24 (b) CaO
25 (a) Cryolite

Chemistry

Chemistry

Q-1 Tocopherol in also known as -----
(a) Vitamin B (b) Vitamin E
(c) Vitamin D (d) None

Q-2 Which of the following is a natural polymer?
(a) Cellulose (b) PVC
(c) Bakelite (d) None

Q-3 Which is a detergent?
(a) Soap (b) Cleansing agent
(c) a and b (d) None

Q-4 In Teflon which element is present?
(a) C (b) Cl
(c) F (d) None

Q-5 Which is a repeating unit of synthetic rubber?
(a) PVC (b) Chloroprene
(c) a & b (d) None

Q-6 Which is polymer of tetorafloroethane?
(a) Teflon (b) Tefta
(c) a & b (d) None

Q-7 Which of the following is antimalarial?
(a) Chloroquine (b) Analgin
(c) Anacin (d) None

Q-8 Which in analgesic?
(a) Butayolidine (b) Butane
(c) a and  b (d) None

Q-9 Neoprene is…….polymer?
(a) Natural (b) Synthetic
(c) a and b (d) None

Q-10 When salicylic acid & acetic anhydride treated in the presence of
Acetic acid then which thing is formed?
(a) Aspirin (b) Acetyl chloride
(c) a and b (d) None

Q-11 Which is an antibiotic?
(a) Ampicillin (b) Terylene
(c) a and b (d) None

Q-12 Which is an addition polymer?
(a) PVC    (b) Nylon
(c)  a and b  (d) None

Q-13 When a solid directly change to vapous form then it is a --------- process?
(a) Sublimation (b) Boiling
(c) Melting (d) None

Q-14 If we increase the pressure of liquid then B.P of liquid will ---------
(a) Decrease (b) Increase
(c) a and b (d) None

Q-15 In acetic acid the presence of carbon is -----------
(a) 40 (b) 50
(c) 60 (d) 80

Q-16 At what time phosgene gas prepared ----------
(a) When chloroform is kept in white glass bottle
(b) When chloroform in kept in dark bottle
(c)   a and b  (d) None

Q-17 Which of the following is a poisonous gas?
(a) Phosgene (b) Oxygen
(c) N (d) None

Q-18 When chloroform react with acetone them it gives ------
(a) Hypnotic (b) Hypo
(c) H2 So4 (d) None

Q-19 CCL3 No2 is ---------
(a) Tear gas (b) Laughing gas
(c) a & b (d) None

Q-20 C-Cl bond in chlorobenzene is --------------
(a) Sp2 hybridised
(b) Sp-hybridised
(c) Sp3-hybridised (d) None

Q-21 Phosgene gas is…….in nature?
(a) Poisonous (b) Helpful
(c) a and b  (d) None

Q-22 In medicine iodoform is used as?
(a) Analgesic (b) Antiseptic
(c)  a and b   (d) None

Q-23 Water is…..acid than alcohol
(a) Weaker (b) Stronger
(c) a and b  (d) None

Q-24 Ethyl alcohol is also known---------
(a) Grain alcohol
(b) Wood alcohol
(c) a and b (d) None

Q-25 Acetaldehyde shows……….
(a) Want hoff reaction
(b) Kolbe process
(c) Aldol condensation reaction
(d) None

Answers:-

1(b) Vitamin E
2(a) Cellulose
3(b) Cleansing agent
4(c) F
5(b) Chloroprene
6(a) Teflon
7(a) Chloroquine
8(a) Butayolidine
9(b) Synthetic
10(a) Aspirin
11(a) Ampicillin
12(a) PVC
13(a) Sublimation
14(b) Increase
15(a) 40
16(a) When chloroform is kept in white glass bottle
17(a) phosgene
18(a) Hypnotic
19(a) Tear gas
20(a) Sp2 –hybridised
21(a) Poisonous
22(b) Antiseptic
23(b) Strong
24(a) Grain alcohol
25(b) Kolbe process