Q:

Port Blair is the Capital City of _____.

A) Andaman and Nicobar Islands	B) Andhra Pradesh
C) Bihar	D) West Bengal

Answer & Explanation Answer: A) Andaman and Nicobar Islands

Explanation:

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Q:

‘Plum Pudding Model’ for an atom was proposed by

A) Antoine Lavoisier	B) Robert Boyle
C) Ernest Rutherford	D) J. J. Thomson

Answer & Explanation Answer: D) J. J. Thomson

Explanation:

The first model of atom was proposed by J. J. Thomson in 1898.According to this model, the positive charge of the atom is uniformly distributed throughout the volume of the atom and the negatively charged electrons are embedded in it like seeds in a watermelon. This model was picturesquely called plum pudding model of the atom

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Q:

The common name of sodium tetraborate decahydrate is _____.

A) epsom salt	B) gypsum
C) Borax	D) galena

Answer & Explanation Answer: C) Borax

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Q:

Which was not produced by volcanic outgassing?

A) Carbon dioxide	B) Water vapor
C) Sulfur	D) Oxygen

Answer & Explanation Answer: D) Oxygen

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Q:

A solution that is at equilibrium must be

A) saturated	B) concentrated
C) unsaturated	D) dilute

Answer & Explanation Answer: A) saturated

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Q:

Aromatic hydrocarbons contain at least _____ benzene like ring in their molecules.

A) 4	B) 3
C) 2	D) 1

Answer & Explanation Answer: D) 1

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Q:

______ character of a bond between two atoms is greater if the difference in their electro negativities is lesser.

A) Polar	B) Metallic
C) Ionic	D) Covalent

Answer & Explanation Answer: D) Covalent

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Q:

For which one of the following, 'Diodes' are generally used for?

A) Rectification	B) Amplification
C) Modulation	D) Filtration

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