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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:

All rational numbers are ____ numbers.

A) integer B) whole
C) irrational D) real
 
Answer & Explanation Answer: D) real

Explanation:
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Filed Under: Numbers
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Q:

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select ‘No Error’.

Education is a instrument which (1)/ imparts knowledge and, therefore (2)/ indirectly controls power. (3)/ No error (4)

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: A) 1

Explanation:
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Filed Under: English
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Q:

select the odd word/letters/number/number pair from the given alternatives.

A) 23498 B) 9494
C) 6946 D) 15578
 
Answer & Explanation Answer: C) 6946

Explanation:
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Filed Under: Odd Man Out
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Q:

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

 

If there is a subject of really ______________ interest and utility, it is the art of writing and speaking one's own language ___________. It is the basis of culture, as we all know; but it is infinitely more _________ that, it is the basis of business. ___________ salesman can sell anything unless he can explain the merits of his goods in effective language, or can write ___________ advertisement equally effective, or present his ideas, and the facts, in a letter.

 

is infinitely more _________ that, it is the basis

 

A) then B) such
C) so D) than
 
Answer & Explanation Answer: D) than

Explanation:
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Filed Under: English
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Q:

If a mirror is placed on the line MN, then which is the right image of the given figure?

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: D) 4

Explanation:
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Filed Under: Image Analysis
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Q:

Select the odd word/letters/number/number pair from the given alternatives.

A) Professor – College B) Teacher – School
C) Beautician – Parlour D) Engineer – Home
 
Answer & Explanation Answer: D) Engineer – Home

Explanation:
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Q:

The instrument that measures the ______________ is called an anemometer.

A) wind speed B) pressure
C) humidity D) rainfall
 
Answer & Explanation Answer: A) wind speed

Explanation:
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Filed Under: Physics
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