Questions

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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Q:

Improve the bracketed part of the sentence.

Any bad habit must be nipped (on) the bud.

A) on B) in
C) off D) no improvement
 
Answer & Explanation Answer: B) in

Explanation:
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Q:

Who is the author of the book 'WE INDIANS'

A) Khushwant Singh B) Mulk Raj Anand
C) Nirad C. Chaudhary D) Subramanya Swamy
 
Answer & Explanation Answer: A) Khushwant Singh

Explanation:
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Q:

5 L from A are V?

Answer

5 L from A are V --- 5 Letters from Alphabets are Vowels.


 

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Q:

The Government has renamed NREGA schme and the name associated with the scheme is that of

A) Rajeev Gandhi B) Indira Gandhi
C) Mahatma Gandhi D) Jawaharlal Nehru
 
Answer & Explanation Answer: C) Mahatma Gandhi

Explanation:
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Filed Under: Indian Economy

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Q:

K-9 Journal, which was recently released, is associated with which field?

 

A) Pandemic B) Robotics
C) Medicine D) Policing
 
Answer & Explanation Answer: D) Policing

Explanation:
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Q:

What is one benefit of lifelong physical activity?

A) high blood pressure B) increase in healthy eating habits
C) high physiological age D) prevention of weight gain
 
Answer & Explanation Answer: C) high physiological age

Explanation:
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Q:

Peace, discipline, freedom and equality are all examples of

peace_discipline_freedom_and_equality_are_all_examples_of1538653767.jpg image

A) Democratic values B) Resolutions
C) Myths D) Settings
 
Answer & Explanation Answer: A) Democratic values

Explanation:

Peace, discipline, freedom and equality are all examples of human values or democratic values which all the people want to be in them for society.

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Filed Under: Indian Politics
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