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Q:

Which one of the following statements is correct?

A) The oxidation number for hydrogen is always zero. B) The oxidation number for hydrogen is always + 1.
C) The oxidation number for hydrogen is always -1. D) Hydrogen can have more than one oxidation number.
 
Answer & Explanation Answer: D) Hydrogen can have more than one oxidation number.

Explanation:

Hydrogen has two possible oxidation numbers: +1 and -1.

-1 in case of hydrides.

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Filed Under: Chemistry
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Q:

Which of the following is NOT based on principle of relationship between volume and pressure of air?

A) Fountain pen B) Bicycle pump
C) Hand pump D) Pulley
 
Answer & Explanation Answer: D) Pulley

Explanation:
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Filed Under: Physics
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Q:

Which one of the following is not a correct ascending order of commissioned ranks in the defence forces of India?

A) Lieutenant, Captain, Major,Lieutenant Colonel, Colonel,Brigadier, Major General,Lieutenant General, General  B) Flying Officer, Flight Lieutenant,Squadron Leader, Wing Commander, Group Captain, Air Commodore, Air Vice Marshal,Air Marshal, Air Chief Marshal
C) Flying Officer, Flight Lieutenant,Squadron Leader, Group Captain,Wing Commander, Air Commodore,Air Vice Marshal, Air Marshal, Air Chief Marshal D) Sub Lieutenant, Lieutenant,Lieutenant Commander,Commander, Captain, Commodore,Rear Admiral, Vice Admiral,Admiral
 
Answer & Explanation Answer: C) Flying Officer, Flight Lieutenant,Squadron Leader, Group Captain,Wing Commander, Air Commodore,Air Vice Marshal, Air Marshal, Air Chief Marshal

Explanation:
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Filed Under: General Awareness
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Q:

Which colour is formed when Red and Green are mixed?

A) Light blue B) Yellow
C) White D) Grey
 
Answer & Explanation Answer: B) Yellow

Explanation:
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Filed Under: General Science
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Q:

Which of the following is man-made fibre?

A) Cotton B) Wool
C) Silk D) Nylon
 
Answer & Explanation Answer: D) Nylon

Explanation:
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Filed Under: General Science
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Q:

In terms of size, Venus ranks no. ___ in our Solar System.

A) 5 B) 6
C) 7 D) 8
 
Answer & Explanation Answer: B) 6

Explanation:
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Filed Under: General Science
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Q:

Ozone hole is caused by chemicals like _____.

A) Nitrogen Oxide B) Hydrogen Sulphide
C) Chloro Fluoro Carbon D) Carbon Monoxide
 
Answer & Explanation Answer: C) Chloro Fluoro Carbon

Explanation:
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Filed Under: General Science
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Q:

Which  one  of  the  following  sectors  is  not affected   by   the   changes   made   in   the Foreign  Direct  Investment  Policy  in June 2016?

A) Multi-brand retailing B) Defence
C) Private security agencies D) Manufacturing   of   small   arms   and ammunitions  covered  under  the  Arms Act, 1959
 
Answer & Explanation Answer: D) Manufacturing   of   small   arms   and ammunitions  covered  under  the  Arms Act, 1959

Explanation:

Changes  made  in  FDI  policy  in June     2016     will     not     affect manufacturing  of  small  arms  and ammunition.

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Filed Under: Indian Politics
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