Q:

Chemical composition of cement is

A) Limestone and Clay	B) Limestone, Clay and Gypsum
C) Limestone and Gypsum	D) Clay and Gypsum

Answer & Explanation Answer: B) Limestone, Clay and Gypsum

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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:

_____ is the major component of natural gas.

A) Acetone	B) Methane
C) Chlorine	D) Hexane

Answer & Explanation Answer: B) Methane

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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:

Among plants, three different genera Solanum, Petunia and Datura are placed in which family?

A) Cancidae	B) Solanaceae
C) Felis	D) Felidae

Answer & Explanation Answer: B) Solanaceae

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Filed Under: Biology
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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Cock and bull story

A) An implausible story used as an explanation or excuse.	B) A fairy tale told down generations.
C) A story of animals with hidden morals.	D) The meek can defeat the bully by being clever

Answer & Explanation Answer: A) An implausible story used as an explanation or excuse.

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Q:

Narendra Modi is the ___ Prime Minister of India.

A) 5th	B) 10th
C) 12th	D) 14th

Answer & Explanation Answer: D) 14th

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Q:

Which of the following countries has the highest population density?

A) China	B) India
C) Phillipines	D) United Kingdom

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