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Q:

Number of moles of CO2 present in 24 grams of carbon is

A) 0.5 B) 1
C) 2 D) 0.25
 
Answer & Explanation Answer: C) 2

Explanation:

1 mole of CO2 contain 12gms of carbon and 44 gms of CO2

therefore  24 gms of carbon is present in 88 gms of CO2 or 2 moles of CO2

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Filed Under: Chemistry

Q:

Atomic weight of an element is given by

A) sum of neutrons and electrons B) sum of neutrons and protons
C) only neutrons D) only protons
 
Answer & Explanation Answer: A) sum of neutrons and electrons

Explanation:

Atomic weight=number of neutrons+number of protons

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Filed Under: Chemistry

Q:

Number of moles of solute present in 1 litre of solution is

A) Normality B) Molarity
C) Molality D) Formality
 
Answer & Explanation Answer: B) Molarity

Explanation:

Moles of solute present in 1 litre or 1000ml of solution is called molarity

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Filed Under: Chemistry

Q:

Which among the following is the most electronegative element?

A) Flourine B) Bromine
C) Iodine D) Oxygen
 
Answer & Explanation Answer: A) Flourine

Explanation:

Flourine is the most electro negative element due to its small atomic radius .It also has the tendency to accept an electron to complete octet configuration

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Filed Under: Chemistry

Q:

When is the world's press freedom day celebrated?

A) 3 May 2013 B) 22 May 2013
C) 3 October 2013 D) 22 October 2013
 
Answer & Explanation Answer: A) 3 May 2013

Explanation:

World press day is celebrated on 3 may 2013 accross the world based o the theme Safe to Speak

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Q:

Who is the author of the book "Adventures of the sherlock holmes"?

A) Harisen B) Arther Conon Doyle
C) Nirod C. Choudhary D) G. B. Shaw
 
Answer & Explanation Answer: B) Arther Conon Doyle

Explanation:

Arther Conon Dole is the author of Adventures of Sheerlock holmes.This book is related to the murder mysteries that are solved by Sherlock holmes

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Filed Under: Books and Authors

Q:

What is the capital Namibia?

A) Male B) Windhoek
C) Monaco D) Ulaanbaatar
 
Answer & Explanation Answer: B) Windhoek

Explanation:

Windheok is the capital of Namibia

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Filed Under: Country Capitals

Q:

Pick the odd man out

1 4 16 64 126

A) 1 B) 4
C) 64 D) 126
 
Answer & Explanation Answer: D) 126

Explanation:

1*3+1=4

4*3+4=16

16*3+16=64

64*3+64=208 but it is given 126

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