Q:

Improve the bracketed part of the sentence.

We are late because my wife took two hours to (put up) her make-up.

A) put on	B) put
C) put over	D) no improvement

Answer & Explanation Answer: A) put on

Explanation:

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0 13984

Q:

What is the IUPAC name of [Co(NH3)4Cl2]?

A) Tetra-ammine dichloro cobalt (III) chloride	B) Tetra-ammine trichloro cobalt (III)
C) Tri-ammine dichloro cobalt (III) chloride	D) Tetra-ammine dichloro cobalt

Answer & Explanation Answer: A) Tetra-ammine dichloro cobalt (III) chloride

Explanation:

The IUPAC nomenclature in organic chemistry is a systematic method that is used to name organic chemical compounds as recommended by the International Union of Pure and Applied Chemistry (IUPAC).

The IUPAC name of the given complex [Co (NH₃)₄Cl₂ ]Cl is - Tetra-ammine dichloro cobalt (III) chloride.

The complex [Co (NH₃)₄ Cl₂ ] Cl ionizes an aqueous solution to furnish the chloride ion Cl⁻ and [Co (NH₃)₄ Cl₂ ] ⁺.

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16 13980

Q:

Which of the following countries enjoys a federal form of government

A) China	B) USA
C) Cuba	D) Belgium

Answer & Explanation Answer: B) USA

Explanation:

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Filed Under: Indian Politics

16 13962

Q:

Which is considered as oldest civilization of the world ?

A) Mesopotamian Civilization	B) Harappan Civilization
C) Chinese Civilization	D) Egyptain Civilization

Answer & Explanation Answer: A) Mesopotamian Civilization

Explanation:

Mesopotamian Civilization (4000 BC - 6th Cen. BC)

Egyptain Civilization (3400 BC - 1000 BC)

Harappan Civilization (2500 BC - 1750 BC)

Chinese Civilization (1765 BC - 250 BC)

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Filed Under: World History

61 13942

Q:

Which planet has the most volcanoes in our solar system?

A) Jupiter	B) Venus
C) Saturn	D) Neptune

Answer & Explanation Answer: B) Venus

Explanation:

Venus has the most number of volcanoes than any other planet in the solar system.

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1 13941

Q:

No current will flow between two charged bodies if they have the same

A) resistance	B) charge
C) potential	D) charge/ potential ratio

Answer & Explanation Answer: C) potential

Explanation:

An electric charge always flows from a body at higher potential to a body at a lower potential irrespective of the amounts of charges contained in them. In the question , no current flows. So there is no potential difference.

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Filed Under: Physics

30 13937

Q:

An electron loses potential energy when it

A) shifts to a more electronegative atom.	B) increases its kinetic energy.
C) shifts to a less electronegative atom.	D) increases its activity as an oxidizing agent.

Answer & Explanation Answer: A) shifts to a more electronegative atom.

Explanation:

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1 13931

Q:

Which type of reaction occurs when carbon burns in oxygen to give carbo dioxide?

A) Addition reaction	B) Substition reaction
C) Combustion reaction	D) Decomposition reaction

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