Q:

Consider the following constituent gases of the atmosphere :

1. Argon

2. Neon

3. Helium

4.Ceirbon dioxide

Which one of the following is the correct ascending sequence of the above gases in terms of the volume percentage?

A) 1-3-2-4	B) 1-4-2-3
C) 4-2-3-1	D) 2-4-1-3

Answer & Explanation Answer: B) 1-4-2-3

Explanation:

Composition of Dry Air (Substance, % by volume)

Nitrogen, N2 78.08

Oxygen, O2

20.95

Argon, Ar 0.93

Carbon dioxide, CO2 0.033

Neon, Ne 0.0018

Helium, He 0.00052

Methane, CH4 0.0002

Krypton, Kr 0.00011

Dinitrogen oxide, N2O 0.00005

Hydrogen, H2 0.00005

Ozone, O3 0.000001

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Filed Under: Chemistry
Exam Prep: Bank Exams

0 43981

Q:

$1 k W h =__________\times 10^{6} J .$

A) 36	B) 3.6
C) 6.4	D) 64

Answer & Explanation Answer: B) 3.6

Explanation:

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Filed Under: Physics
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1 43940

Q:

The relative humidity of a region is low when :

A) The wet and dry bulb thermometers read the same	B) The difference between the readings of the wet and dry bulb thermometers is large
C) The temperature are high	D) The temperatures are low

Answer & Explanation Answer: B) The difference between the readings of the wet and dry bulb thermometers is large

Explanation:

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Filed Under: World Geography

7 43894

Q:

What is two days after the day after the day before yesterday?

Answer

Tomorrow

The day before yesterday was two days ago; the day after the day before yesterday was yesterday; two days after that (yesterday) is tomorrow.

Workspace

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Subject: Clock puzzles

139 43776

Q:

Which type of reaction occurs when carbon burns in oxygen to give carbo dioxide?

A) Addition reaction	B) Substition reaction
C) Combustion reaction	D) Decomposition reaction

Answer & Explanation Answer: C) Combustion reaction

Explanation:

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Filed Under: Chemistry
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0 43747

Q:

Feroz Gandhi Award is associated with

A) Medical Research	B) Journalism
C) Preservation of worldlife	D) Parlimentory debate

Answer & Explanation Answer: B) Journalism

Explanation:

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Filed Under: Honours and Awards

193 43722

Q:

Which of the following statements are CORRECT?

I. Esters are sweet smelling substance.
II Esters are used in making perfumes.
III. Functional group of ester is R-O-RꞋ.

A) Only I and II	B) Only I and III
C) Only II and III	D) All I, II and III

Answer & Explanation Answer: A) Only I and II

Explanation:

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Filed Under: Chemistry
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0 43683

Q:

Plants of which group are predominantly aquatic?

A) Thallophyta	B) Bryophyta
C) Pteridophyta	D) No option is correct

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