Q:

If quantity of good X demanded increases from 2300 to 2700 when price of good Y increases from Rs. 45 to Rs. 55, find Arc Cross elasticity of demand?

A) 4	B) 1.25
C) 0.25	D) 0.8

Answer & Explanation Answer: D) 0.8

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Q:

If the ___________ firm has zero costs or only has fixed cost, the quantity supplied in equilibrium is given by the point where the average revenue is zero.

A) Perfect Competition	B) Monopoly
C) Oligopoly	D) Monopolistic Competition

Answer & Explanation Answer: A) Perfect Competition

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Q:

Why do atoms bond?

A) To reduce potential energy and gain stability	B) To make atoms
C) To increase potential energy and lose stability	D) To increase potential energy and gain stability

Answer & Explanation Answer: A) To reduce potential energy and gain stability

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Q:

Select the INCORRECT set of Molecular Formula - IUPAC Name - Common Name from the following options.

A) C4H9OH	B) C2H3OH - Methanol - Methyl Alcohol
C) C2H5OH - Ethanol - Ethyl Alcohol	D) C3H7OH - Propanal - Propyl Alcohol

Answer & Explanation Answer: B) C2H3OH - Methanol - Methyl Alcohol

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Q:

The most active ingredient in bleaching powder is

A) Iodine	B) Calcium hypochlorite
C) Nitric acid	D) Ammonium sulphate

Answer & Explanation Answer: B) Calcium hypochlorite

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Q:

The gas evolved when sodium carbonate reacts with hydrochloric acid is

A) Hydrogen	B) Chlorine
C) Hydrogen Chloride	D) Carbon dioxide

Answer & Explanation Answer: D) Carbon dioxide

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Q:

Which of the following compounds has a double bond?

A) Acetylene	B) Ethene
C) Ethane	D) Methane

Answer & Explanation Answer: B) Ethene

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Q:

There are 15 protons and 22 neutrons in the nucleus of an element. What is its mass number?

A) 22	B) 7
C) 37	D) 15

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