Q:

An atom has 7 electrons in its M - shell and contains 18 neutrons in its nucleus. What is its mass number

A) 25	B) 27
C) 35	D) 43

Answer & Explanation Answer: C) 35

Explanation:

According to Bohr model, Each shell can occupy 2 $n^{2}$ electrons in their orbits where n=1,2,3.. for K,L,M,..

The atom has 2 electrons in k, 8 electrons in L and 7 electrons in M = 2 + 8 + 7 = 17

And given that its nucleus has 18 neutrons

=> its mass number = number of (electrons + neutrons ) = 17 + 18 = 35

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Filed Under: Chemistry

45 9590

Q:

The bleeding of a wound is stopped by the application of ferric chloride because_____

A) Ferric chloride seals the blood vessels	B) Blood starts flowing in the opposite direction
C) Blood reacts and a solid is formed which seals the blood vessels	D) Blood is coagulated and the blood vessels are sealed

Answer & Explanation Answer: D) Blood is coagulated and the blood vessels are sealed

Explanation:

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Filed Under: Chemistry

36 9578

Q:

Veto power is not possessed by

A) U.K	B) U.S.A
C) Rrussia	D) West Germany

Answer & Explanation Answer: D) West Germany

Explanation:

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Filed Under: World Organisations

22 9577

Q:

Choose the word which is nearly opposite in meaning to the given word:-

Insolent

A) Sullen	B) Affable
C) Determined	D) Rich

Answer & Explanation Answer: B) Affable

Explanation:

Insolent means ill-manneredSullen means moodyAffable means good-naturedwhich is nearly opposite to InsolentDetermined means purposeful

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Filed Under: English
Exam Prep: Bank Exams

0 9575

Q:

Which is the only woman to have won the three Wimbledon titles in a row

A) Mari Pearey	B) Miton
C) Sang Chan	D) Steffi Graff

Answer & Explanation Answer: D) Steffi Graff

Explanation:

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Filed Under: Sports

9 9568

Q:

Select the antonym of

endeavour

A) passive	B) buck
C) assay	D) intend

Answer & Explanation Answer: A) passive

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

0 9563

Q:

Improve the bracketed part of the sentence.

The teacher did not ask (any questions to Rinky).

A) any questions of Rinky	B) to Rinky any questions
C) Rinky any questions	D) no improvement

Answer & Explanation Answer: C) Rinky any questions

Explanation:

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Filed Under: English
Exam Prep: Bank Exams

0 9556

Q:

In the following question, choose the word opposite in meaning to the given word.

Mitigate

A) enlarge	B) reduce
C) increase	D) multiply

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