Q:

Why does carbon tetrachloride have no dipole moment?

A) Because of same size of carbon and chlorine atoms	B) Because of regular tetrahedral structure
C) Because of planar structure	D) Because of similar electron affinities of carbon and chlorine

Answer & Explanation Answer: B) Because of regular tetrahedral structure

Explanation:

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Q:

The pH of a solutiion is 3. When its pH changes to 6, then H+ ion concentration

A) increases 2 times	B) increases 3 times
C) decreases 1000 times	D) decreases 100 times

Answer & Explanation Answer: C) decreases 1000 times

Explanation:

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Q:

Which of the following is NOT included in the excretory system of human being?

A) A pair of kidney	B) A pair of ureters
C) Abdomen	D) Urinary bladder

Answer & Explanation Answer: C) Abdomen

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Filed Under: Biology
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Q:

Control processes depend on which part of the brain

A) hypothalamus	B) amygdala
C) cerebellum	D) prefrontal cortex

Answer & Explanation Answer: D) prefrontal cortex

Explanation:

Control processes depend on the prefrontal cortex which shrinks with age. Inadequate control processes may explain why many older adults have extensive vocabs (measured by written tests) but limited fluency (when they write or talk).

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Q:

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to "No improvement".

An old friend, may I give you an advice?

A) give you some advice	B) give you an advise
C) offer you an advice	D) No improvement

Answer & Explanation Answer: A) give you some advice

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Q:

In the following question, a sentence / a part of sentence is underlined. Below are given alternatives to the underlined part which may improve the sentence. Choose the correct alternative. In case no improvement is required, choose "No Improvement" option.

No one was there on the platform after the train had left.

A) No one were there on	B) No one was on there
C) None was there on	D) No improvement

Answer & Explanation Answer: D) No improvement

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Q:

At Rio Olympics, what was the final position of Dipa Karmakar in her category?

A) 4	B) 5
C) 6	D) 7

Answer & Explanation Answer: A) 4

Explanation:

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Q:

Mahatma Gandhi returned to India from ______________ in January 1915.

A) South Africa	B) England
C) USA	D) Russia

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