Chap No.4 GASES

Chap No.4 GASES

1.	Kinetic molecular theory of gases are proposed by a. Bernoulli b.Boyles c.Charles d. Non of these	A
2.	Apparatus used for measuring gas pressure is called a. Manometer b.Barometer c.Toricillian barometer d.Non of these	A
3.	Manometer used for measuring atmospheric pressure is called a. Manometer b.Barometer c.Toricillian barometer d. Non of these	B
4.	A common type of Barometer is a. Manometer b. Barometer c. Toricillian barometer d. Non of these	C
5.	1atm= a. 760mm Hg b.760 torr c.101325Pa or 1Nm-2 or 14.7psi d. All of these	D
6.	Graphical representation of Boyle’s law a. Parabola b. Linear c. Circular d. Hyperbola	D
7.	New volume at 500 C = Original volume at 00 C+(1/273 x Original volume at 00C ) x……. a. 500 b. O c. 100 d. 99	A
8.	Ideal gas equation           a. PV=nRT b. (P+a/v2) (V-b)=RT c. (P+a n2/v2) (V-nb)=nRT d. Both c and d	A
9.	Non ideal gas equation or Van der waal’s equation a. PV=nRT b. (P+a/v2) (V-b)=RT c. (P+a n2/v2) (V-nb)=nRT d. Both c and d	D
10.	Pt=P1+P2 +P3 +P4 ………...+Pn Dalton’s law of a. partial pressure b. pressure c. full pressure d. very low pressure	A
11.	Graphical representation of Charles law a. Parabola b. Linear c. Circular d. Hyperbola	B
12.	One dm3 of hydrogen gas at STP weight approximately a. 0.0789 g b. 0.0799 g c. 0.0987 g d. 0.0899 g	D
13.	The value of ideal gas constant in dm3 torr K-1 mol-1 a. 0.0821 b. 1.98 c. 62.374 d. 8.3143	D
14.	A gas has certain volume at 10oC. how much temperature should be raised to double its volume a. 566K b. 283K c. 293K d. 283K	A
15.	The rate of diffusion of H2 compared to He is a. 0.5 times b. 1.4 times c.2 times d. 4 times	B
16.	Hydrogen gas possessed  kinetic energy at the same temperature as compared to oxygen gas a. More b.Same c. less d. Some time more sometime less	A
17.	The molar volume of He is 44.8 dm3 at a. 100 oC  and 1 atm b. 25 oC  and 0.25 atm c. 0 oC  and 0.5 atm d. 40 oC  and 0.5 atm	C
18.	At the same temperature and pressure which one of the following gases has the greatest density a. CO2 b. SO2 Cl2 H2 O	C
19.	The number of atoms in 2 moles of CO2 is a. 6.023 x 1023 b. 12.024 x 10 23 1.8132 x 1024 3.6132 x 1024	C
20.	The color of plasma depends upon a. Gas used b. Voltage c. Current d. All of these	A
21.	When electric current is passed through neon  gas, it produces a. Plasma b. Light c. Plasma and light d. Ultra violet rays	C
22.	About  99% of the universe is made of a. Solid b. Liquid c. Gas d. plasma	D
23.	real gases are a. ideal b. non ideal c. sometime some time non ideal d. non of these	B
24.	plasma contains a. neutral particle b. positive ions c. negative electrons d. all of these	D
25.	the temperature above which a gas cannot be liquefied alone is called a. ultra temperature b. critical temperature c. curie temperature d. non of these	B