Q:

What reacts with oxygen to produce rust?

A) Aluminium	B) Silver
C) Copper	D) Iron

Answer & Explanation Answer: D) Iron

Explanation:

Iron reacts with oxygen in the presence of moisture or water to form a red oxide called rust and the reaction involved is called as Redox reaction.

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Q:

If demand curve for alphonso mangoes is D = 25000 70P and supply curve is S = 10000 + 80P, find the equilibrium quantity?

A) 18,000 units	B) 2,000 units
C) 1,800 units	D) 200 units

Answer & Explanation Answer: A) 18,000 units

Explanation:

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Filed Under: Physics
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Q:

Time period of a seconds pendulum is

A) 2 seconds	B) 4 seconds
C) 1 seconds	D) 0 seconds

Answer & Explanation Answer: A) 2 seconds

Explanation:

A seconds pendulum is a pendulum whose period is precisely two seconds i.e, one second for a swing in one direction and one second for the return swing.

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Q:

Who started Shudhi Movement?

A) Dayananda Saraswathy	B) Sri Aurobindo
C) Swami Vivekananda	D) Yashoda Bhai

Answer & Explanation Answer: A) Dayananda Saraswathy

Explanation:

Shudhi Movement was started by Dayananda Saraswathy.

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Q:

Which statement describes the amount of rainfall in grasslands?

A) more than deserts	B) less than forests
C) Both A & B	D) None of the above

Answer & Explanation Answer: C) Both A & B

Explanation:

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Q:

First Indian woman to cross English Channel?

A) Arati Saha	B) Fathima Beevi
C) Bachendri Paul	D) Kadambini Ganguly

Answer & Explanation Answer: A) Arati Saha

Explanation:

Arati Saha was the first Indian woman to cross English Channel (between England and France) in the year 1959. She was born in 1940 in Kolkata.

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Q:

Which among the following is used in making liquors, medicines and as a fuel in aircrafts?

A) Propyl alcohol	B) Dimethyl alcohol
C) Ethyl alcohol	D) Methyl alcohol

Answer & Explanation Answer: C) Ethyl alcohol

Explanation:

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Filed Under: Chemistry
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Q:

Select the antonym of
generosity

A) altruism	B) general
C) largesse	D) malevolence

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