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:

Which is known as carbolic acid?

A) Phenol	B) Ethanol
C) Acetic acid	D) Oxalic acid

Answer & Explanation Answer: A) Phenol

Explanation:

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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

Explanation:

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Q:

_____ is produced from incomplete burning of fuels such as petrol and diesel.

A) Carbon dioxide	B) Carbon monoxide
C) Nitric oxide	D) Nitrogen dioxide

Answer & Explanation Answer: B) Carbon monoxide

Explanation:

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Q:

Which of the following does not hold true for Animal belonging to Phylum Chordate?

A) Notochord present	B) Pharynx perforated by gill slits.
C) Heart is dorsal (if present)	D) A post-anal part (tail) is present

Answer & Explanation Answer: C) Heart is dorsal (if present)

Explanation:

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Q:

Which drug is used as an Anti-Histamine?

A) Fexofenadine	B) Ranitidine
C) Promethazine	D) Ibuprofen

Answer & Explanation Answer: C) Promethazine

Explanation:

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Q:

Who was the invertor of frozen foods?

A) Alfred Nobel	B) Clarence Birdseye
C) Frank Whittle	D) Ives McGaffey

Answer & Explanation Answer: B) Clarence Birdseye

Explanation:

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Q:

Dehradun is the capital city of _____.

A) Uttarakhand	B) Uttar Pradesh
C) Tripura	D) Arunachal Pradesh

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