Q:

Which of the following statement(s) is/are INCORRECT regarding Phosphorus?

A) Phosphorus reacts vigorously with water	B) It is a non-metal
C) It catches fire on reacting with air	D) It is found in group 15 of the modern periodic table

Answer & Explanation Answer: A) Phosphorus reacts vigorously with water

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Q:

What happens in an oxidation reaction?

A) Protons are lost.	B) Electrons are lost
C) Neutrons are lost.	D) Electrons are gained.

Answer & Explanation Answer: B) Electrons are lost

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Q:

Which of the following gases is heavier than oxygen?

A) Carbon dioxide	B) Ammonia
C) Methane	D) Helium

Answer & Explanation Answer: A) Carbon dioxide

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Q:

Which of the following is a greenhouse gas or a gas, which can deplete the ozone layer?

A) As	B) Kr
C) C4H8	D) CH4

Answer & Explanation Answer: D) CH4

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Q:

Which of the following sources has the largest share in power generation in India?

A) Atomic power	B) Thermal power
C) Hydro power	D) Wind power

Answer & Explanation Answer: B) Thermal power

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Q:

A level of atmosphere which is composed partly of electrons and positive ions is called

A) Troposphere	B) Ionosphere
C) Stratosphere	D) Mesosphere

Answer & Explanation Answer: B) Ionosphere

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Q:

The work done by centripetal force is ______.

A) positive	B) zero
C) negative	D) unity

Answer & Explanation Answer: B) zero

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Q:

Who is the Chairman of NITI Aayog?

A) President	B) RBI Governor
C) Finance Secretary	D) Prime Minister

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