Questions

Q:

Which properties are characteristic of the group 1 metals?

A) Low melting points B) Produce hydrogen when react with water
C) Soft in nature D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Group 1 metals are also called as alkali metals with reactive in nature and low melting points. They are soft and produce hydrogen and alkaline metal hydroxide solution when they react with water.

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Q:

Kidney stones are composed of ______.

A) Calcium Oxalate B) Sodium Chloride
C) Magnesium Nitrate D) Calcium Bicarbonate
 
Answer & Explanation Answer: A) Calcium Oxalate

Explanation:
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Q:

Atomic number of which of the following elements is greater than that of Chlorine

A) Potassium B) Sulphur
C) Aluminium D) Phosphorus
 
Answer & Explanation Answer: A) Potassium

Explanation:
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Q:

Improve the bracketed part of the sentence.
He thanked me for what I (have done) for his wife.

A) had done B) had been done
C) have been done D) No improvement
 
Answer & Explanation Answer: A) had done

Explanation:
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Q:

Fitness can be achieved only through

A) endurance B) frequency
C) accuracy D) resistance
 
Answer & Explanation Answer: B) frequency

Explanation:

Fitness can be achieved only through frequency.

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Q:

Organisms use bio-catalyst to break down complex substances into simpler substances. These bio-catalysts are called ______.

A) enzymes B) hormones
C) vitamins D) No option is correct
 
Answer & Explanation Answer: A) enzymes

Explanation:
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Q:

If x + (1/x) = (√3 + 1)/2, then what is the value of x4 + (1/x4)?

A) (4√3 – 1)/4 B) (4√3 + 1)/2
C) (–4√3 – 1)/4 D) (–4√3 – 1)/2
 
Answer & Explanation Answer: C) (–4√3 – 1)/4

Explanation:
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Q:

Who has been appointed as the new Nepalese ambassador to India?

A) Nilambar Acharya B) P S Krishnan
C) Sanjiv Ranjan D) Dinesh Bhatia
 
Answer & Explanation Answer: A) Nilambar Acharya

Explanation:

Nilambar Acharya has been appointed as the new Nepalese ambassador to India.

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