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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 countries is not a member of G­8?

A) USA B) UK
C) Germany D) Russia
 
Answer & Explanation Answer: C) Germany

Explanation:
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Filed Under: General Awareness
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Q:

­ Indian Constitution came into force on

A) 15th August 1947 B) 26th January 1950
C) 26th November 1948 D) 6th November 1948
 
Answer & Explanation Answer: B) 26th January 1950

Explanation:
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Filed Under: Indian Politics
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Q:

The discretionary powers of a Governor is limited in

A) Appointment of Chief Minister B) Dismissal of the Ministry
C) Dissolution of the Legislative Assembly D) Assent to Bills
 
Answer & Explanation Answer: D) Assent to Bills

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Filed Under: Indian Politics
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Q:

The commonly used thermometric substance is _____.

A) mineral oil B) Alcohol
C) Mercury D) Petrol
 
Answer & Explanation Answer: C) Mercury

Explanation:
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Filed Under: General Science
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Q:

Which company developed 'Swift' Programming Language?

A) Google B) Microsoft
C) Facebook D) Apple
 
Answer & Explanation Answer: D) Apple

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Filed Under: Computer
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Q:

The salary of a person is reduced by 20% . To restore the previous salary, his present salary is to be increased by

A) 20% B) 25%
C) 17.5% D) 22.5%
 
Answer & Explanation Answer: B) 25%

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Filed Under: Quantitative Aptitude - Arithmetic Ability
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Q:

Assembly line was invented by

A) Alexander Parkes B) Luigi Palmieri
C) Alexey Pajitnov D) Ransom Eli Olds
 
Answer & Explanation Answer: D) Ransom Eli Olds

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Filed Under: Inventions
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