Q:

Group 8A of the periodic table contains the

A) least reactive metals	B) most reactive nonmetals
C) most reactive metals	D) least reactive nonmetals

Answer & Explanation Answer: D) least reactive nonmetals

Explanation:

Helium (He), Neon(Ne), Argon(Ar), Krypton (Kr), Xenon (Xe), Radon (Rn) and Ununoctium (Uuo) are present group 8A.

They have fully filled orbitals and hence are most stable amongst all the elements in the periodic table and are considered as least reactive least reactive non-metals.

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1 11730

Q:

How many astronauts have walked on the moon?

A) 2	B) 5
C) 8	D) 12

Answer & Explanation Answer: D) 12

Explanation:

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1 11719

Q:

Nawab Siraj -ud-daulah of Bengal was defeated by the English in the battle of Plassey, mainly

A) because the English Forces were much stronger than those of the Nawab	B) because of Clive's conspiracy with the Nawab's Commander-in-Chief Mir Jafar and rich bankers of Bengal
C) because of Siraj-ud-Daulah's retirement from the battlefield	D) because of the capture of a band of frenchmen under the Nawab's service by the English

Answer & Explanation Answer: B) because of Clive's conspiracy with the Nawab's Commander-in-Chief Mir Jafar and rich bankers of Bengal

Explanation:

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Filed Under: Indian History

61 11719

Q:

Which of the following is the storage area within the computer itself which holds data only temporarily as the computer process instructions?

A) the hard disk	B) main memory
C) the control unit	D) read-only memory

Answer & Explanation Answer: B) main memory

Explanation:

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32 11716

Q:

Select the antonym of

provision

A) removal	B) cater
C) plan	D) stock

Answer & Explanation Answer: A) removal

Explanation:

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0 11712

Q:

Name a common greenhouse gas containing only hydrogen and oxygen?

A) CH4	B) O3
C) H2O	D) NO

Answer & Explanation Answer: C) H2O

Explanation:

The common greenhouse gas containing only hydrogen and oxygen is H2O, this is water vapor.

The common greenhouse gases are water vapor, carbon dioxide, methane, nitrous oxide, and ozone.

The composition (chemical formula) of those gases are:

Water vapor: H2O
Carbon dioxide: CO2
Methane: CH4
Nitrous oxide: NO
Ozone: O3.

As you see the only one of those that contains only hydrogen and oxygen is H2O, water vapor.

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10 11709

Q:

Complete the following sentence with the most appropriate option.

An office always has a /an ___.

A) Roof	B) Kitchen
C) Authority	D) Car

Answer & Explanation Answer: C) Authority

Explanation:

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1 11704

Q:

Which ruler held a religious assembly at Prayag every five years?

A) Ashoka	B) Kanishka
C) Harshavardhana	D) Chandragupta vikramaditya

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