Questions

Q:

How many chromosomes does a human cell contain?

A) 6 B) 26
C) 46 D) 66
 
Answer & Explanation Answer: C) 46

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Q:

NaCl is a salt which is made up of

A) Strong acid and weak base B) Weak acid and weak base
C) Strong acid and strong base D) Weak acid and strong base
 
Answer & Explanation Answer: C) Strong acid and strong base

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Q:

Which one of the following is lyophilic colloid?

A) Gold sol B) Smoke
C) Cloud D) Starch aqueous solution
 
Answer & Explanation Answer: D) Starch aqueous solution

Explanation:

Starch aqueous solution is a lyophilic colloidal solution.

 

Lyophilic colloids are liquid loving colloids.  When these colloids are mixed with suitable liquid high force of attraction exists between colloidal particles and liquid.

 

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Q:

Narcolepsy is a disorder in which a person

A) has excessive daytime sleepiness B) has excess heart rate
C) has excess body pains D) All the above
 
Answer & Explanation Answer: A) has excessive daytime sleepiness

Explanation:

 

Narcolepsy is a disorder in which a person has excessive daytime sleepiness, sleep/wake disorder.

 

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Q:

During the day which process is the major driving force in the movement of water in the xylem?

A) Transpiration pull B) Evaporation
C) Suction D) Translocation
 
Answer & Explanation Answer: A) Transpiration pull

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Q:

The human spinal column is made up of ___ bones.

A) 33 B) 42
C) 44 D) 53
 
Answer & Explanation Answer: A) 33

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Q:

Which of the following brings out the 'Consumer Price Index Number' for Industrial workers?

A) RBI B) The Labour Bureau
C) Commerce Department D) NITI Ayog
 
Answer & Explanation Answer: B) The Labour Bureau

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Q:

If a consumer's demand for a good moves in the same direction as the consumer's income, the consumer's demand for that good must be inversely related to the price of the good is called __________.

A) Law of demand B) Law of supply
C) Law of substitution D) Law of optimal choice
 
Answer & Explanation Answer: A) Law of demand

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