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