Questions

Q:

Which of the statements given below are correct?

1. The author of the novel 'Atonement' is Ian McEwan.
2. The author of the novel 'The Sound and the Fury' is L. Ron Hubbard.
3. The author of the novel 'White Teeth' is Zadie Smith.

A) 1 and 2 B) 2 and 3
C) 1 and 3 D) 1, 2 and 3
 
Answer & Explanation Answer: C) 1 and 3

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Q:

Heavy water is

A) PH7 B) rain water
C) deuterium oxide D) tritium oxide
 
Answer & Explanation Answer: C) deuterium oxide

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Filed Under: General Science

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Q:

Fifth generation computer is also known as

A) Very Large Scale Integration (VLSI) B) Knowledge information processing system
C) Both A & B D) None of the above
 
Answer & Explanation Answer: B) Knowledge information processing system

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Q:

The Green Revolution in India was the outcome of the efforts of who amongst the following?

A) Dr MS Swaminathan B) Dr C Rangarajan
C) KV Kamath D) Dr Rakesh Mohan
 
Answer & Explanation Answer: A) Dr MS Swaminathan

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Q:

Water has maximum density at............

A) 0 C B) -15 C
C) 4 C D) 15 C
 
Answer & Explanation Answer: C) 4 C

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Filed Under: Physics

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Q:

The reactivity of an atom arises from 

A) the existence of unpaired electrons in the valence shell B) the energy differences between the electron shells
C) the sum of the potential energies of all the electron shells D) the average distance of the outermost electron shell from the nucleus
 
Answer & Explanation Answer: A) the existence of unpaired electrons in the valence shell

Explanation:

When atoms react they do so in order to reach the lowest energy, which is the most stable. The electrons orbitals will overlap in the way that reduces the energy the most. Orbitals of similar energy will produce the greatest stabilisation.The answer you gave isn't the whole story, it depends what species is reacting with what. The effective nuclear charge on the atom will affect the energy of the valance electrons.

 

Hence, the reactivity of an atom arises from the existence of unpaired electrons in the valence shell.

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Filed Under: Chemistry
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Q:

What kind of apple isn't an apple?

A) Pineapple B) Akero apple
C) Adanac apple D) Aceymac apple
 
Answer & Explanation Answer: A) Pineapple

Explanation:

Except pineapple remaining all three are types of apples.

Pineapple is what kind of apple isn't an apple.

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Q:

Which of the statements given below are correct?

1. The author of the novel 'Half of a Yellow Sun' is Chimamanda Ngozi Adichie.
2. The author of the novel 'Middlesex' is Jeffrey Eugenides.
3. The author of the novel 'Missile Gap' is China Mieville.

A) 1 and 2 B) 2 and 3
C) 1 and 3 D) 1, 2 and 3
 
Answer & Explanation Answer: A) 1 and 2

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