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 9583

Q:

Tripping is associates with

A) Snooker	B) Volleyball
C) Football	D) Cricket

Answer & Explanation Answer: C) Football

Explanation:

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Filed Under: Sports
Exam Prep: Bank Exams

1 9577

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 9574

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 9566

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 9561

Q:

If a new device is attached to a computer, such as printer or scanner, its ______ must be installed before the device can be used

A) buffer	B) driver
C) pager	D) server

Answer & Explanation Answer: B) driver

Explanation:

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Filed Under: Computer
Exam Prep: Bank Exams
Job Role: Bank PO

20 9544

Q:

The Unitary System of Government possesses which of the following advantages

A) Greater adaptability	B) Strong State
C) Greater participation by the people	D) Lesser chances of authoritarianism

Answer & Explanation Answer: B) Strong State

Explanation:

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Filed Under: Indian Politics

9 9536

Q:

What enables an electric current to flow in a circuit?

A) The motion of electrons	B) The motion of neutrons
C) The motion of positrons	D) The motion of protons

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