Q:

Which is an example of an endothermic reaction?

A) combustion	B) mix of CaO with water
C) coal is burnt	D) photosynthesis

Answer & Explanation Answer: D) photosynthesis

Explanation:

A chemical reaction in which involves the absorption of heat from the environment is called a Endothermic reaction.

Examples : Dissolving ammonium chloride in water, photosynthesis, melting ice cubes, mixing of potassium chloride with water,...

In the contrast, chemical reactions involving release of heat are known as exothermic reactions.

Examples : Combustion, coal is burnt, mix of CaO with water,...

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Q:

A duty is a task required of which citizens

A) citizens elected to a party	B) a minority of citizens
C) a majority of citizens	D) all citizens

Answer & Explanation Answer: D) all citizens

Explanation:

A duty is a task that is to be obeyed, followed and respected by all the citizens of the country or state.

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Q:

What is the resistance (in ohm) of an electrical component if a current of 0.1 A passes through it on application of 5 V of potential difference across it?

A) 0.5	B) 100
C) 50	D) 1

Answer & Explanation Answer: C) 50

Explanation:

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Filed Under: Physics
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Q:

Polyploidy is involved in which of the following examples?

A) XYY males	B) Some plants alternate between haploid and diploid phases
C) XO females	D) A normal watermelon has 22 chromosomes but seedless watermelons have 33 chromosomes

Answer & Explanation Answer: D) A normal watermelon has 22 chromosomes but seedless watermelons have 33 chromosomes

Explanation:

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Q:

Agronomy is a branch of agriculture that deals with

A) Study of crops	B) Study of soil
C) Both A & B	D) None of the above

Answer & Explanation Answer: C) Both A & B

Explanation:

Agronomy is a branch of agriculture that deals with the study of crops and the soils in which they are produced.

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Q:

Choose the correctly spelt word:-

A) Gragarious	B) Gragerious
C) Gregarious	D) Grigareous

Answer & Explanation Answer: C) Gregarious

Explanation:

Gregarious is spelt correctly which means sociable.

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Filed Under: English
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Q:

Other things equal an improvement in productivity will

A) shift the aggregate demand curve to the left	B) shift the aggregate supply curve to the right
C) increase the equilibrium price level	D) shift the aggregate supply curve to the left

Answer & Explanation Answer: B) shift the aggregate supply curve to the right

Explanation:

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Q:

Guernica, the world famous painting was painted by

A) Van Gogh	B) Michelangelo
C) Picasso	D) Leonardo Da Vinci

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