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Q:

The hymns of ' Rigaveda ' are the work of

A) one author B) four author
C) seven author D) many author
 
Answer & Explanation Answer: D) many author

Explanation:
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Filed Under: Indian History

4 7165
Q:

Which of the following has the highest entropy?

A) Hydrogen B) Diamond
C) Liquid nitrogen D) Mercury
 
Answer & Explanation Answer: A) Hydrogen

Explanation:

Entropy is a measure of disorder . It will be maximum in gases followed by liquids and least in solids.

 

Hence, here the gas is only hydrogen and it has the highest entropy.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

8 7162
Q:

Gum Kelucharan Mohapatra is a maestro of which of the following dance forms

A) Kathak B) Kuchipudi
C) Odissi D) Kathakali
 
Answer & Explanation Answer: A) Kathak

Explanation:
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Filed Under: Famous Personalities

7 7159
Q:

Variable number of tandem repeats (VNTRs) in the DNA molecule are highly useful in

A) Recombinant DNA technology B) Monoclonal antibody production
C) Stemcell culture D) DNA fingerprinting
 
Answer & Explanation Answer: D) DNA fingerprinting

Explanation:
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Filed Under: Biology
Exam Prep: AIEEE

23 7153
Q:

Which one of the following is not radioactive

A) Astanine B) Francium
C) Tritium D) Zirconium
 
Answer & Explanation Answer: D) Zirconium

Explanation:
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Filed Under: Chemistry

13 7147
Q:

When does the condition 'rendezvous' arise?

Answer

In message passing, it is the condition in which, both, the sender and receiver are blocked until the message is delivered.

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Subject: Operating Systems

12 7141
Q:

Who is known as Barefoot Painter

Answer

M.F.Hussain

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Subject: Indian Culture

106 7139
Q:

The oxidation number of Cr in K2Cr2O7 is

A) +6 B) -5
C) +3 D) -4
 
Answer & Explanation Answer: A) +6

Explanation:

We will rewrite the formula as an equation.

2K + 2Cr + 7O = 0

The zero comes from there being no overall charge on the compound.

Each oxidation number is represented by the element's symbol.

Since this compound is not a peroxide or superoxide, the oxidation value for O is -2

K being in group 1 has a +1 charge and therefore has an oxidation number of K is +1

Now, by putting known values in we have:

2(+1) + 2(Cr) + 7(-2) = 0

2 + 2Cr -14 = 0

2Cr = +12

Cr = +6.

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Filed Under: Chemistry
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13 7135