Q:

Select the option that correctly matches the contents of the first column with the contents of the second column.

A. Elements combine in fixed ratios	I. Dalton's atomic theory
B. Atoms are indivisible	II. The same number of molecules
C. Sulphate and Oxalate ions are anions, whereas magnesium and	III. Law of constant proportions
D. Gram atomic mass of an element and the gram molecular mass of a compound contain	IV. Ammonium ions are cations

A) A-III, B-II, C-IV, D-I	B) A-III, B-I, C-IV, D-II
C) A-III, B-IV, C-I, D-II	D) A-I, B-III, C-IV, D-II

Answer & Explanation Answer: B) A-III, B-I, C-IV, D-II

Explanation:

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0 1434

Q:

Which of the following is not a nitrogenous fertiliser?

A) Ammonium sulphate	B) Urea
C) Ammonium nitrate	D) Superphospohate

Answer & Explanation Answer: D) Superphospohate

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Q:

Why does carbon tetrachloride have no dipole moment?

A) Because of same size of carbon and chlorine atoms	B) Because of regular tetrahedral structure
C) Because of planar structure	D) Because of similar electron affinities of carbon and chlorine

Answer & Explanation Answer: B) Because of regular tetrahedral structure

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Q:

Which among the following has highest electron affinity?

A) Chlorine	B) Fluorine
C) Helium	D) Xenon

Answer & Explanation Answer: A) Chlorine

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Q:

What will be the value of the kinetic energy (Ek) of a moving body with mass m, if its speed is doubled from v to 2v?

A) 1/2 Ek	B) 4 Ek
C) There will be no change in Ek	D) 2 Ek

Answer & Explanation Answer: B) 4 Ek

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2 1433

Q:

Which one of the following statementsis not correct?

A) BrahMos is a supersonic cruise missile made by India and Russian Federation.	B) The name BrahMos came from two rivers, Brahmaputra of India and Moskva of Russia.
C) Indian military scientists were capable of integrating BrahMos cruise missile with Sukhoi-30 MKI fighter.	D) Defence Research and Development Organization is the manufacturer of Sukhoi-30 MKI fighter.

Answer & Explanation Answer: D) Defence Research and Development Organization is the manufacturer of Sukhoi-30 MKI fighter.

Explanation:

The Sukhoi Su-30MKI is a twinjet multirole air superiority fighter developed by Russia's Sukhoi and built under licence by India's Hindustan Aeronautics Limited (HAL) for the Indian Air Force (IAF).The BrahMos is a medium-range ramjet supersonic cruise missile that can be launched from submarine, ships, aircraft, or land. It is a joint venture between the Russian Federation's NPO Mashinostroyeniya and India's Defence Research and Development Organisation (DRDO) who together have formed BrahMos AerospaceThe name BrahMos is a portmanteau formed from the names of two rivers, the Brahmaputra of India and the Moskva of Russia.

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Q:

In Microsoft Excel, the _________() function is used to count the number of cells that contain numbers within the list of arguments.

A) COUNTIF	B) COUNT
C) SUMCOUNT	D) COUNTSUM

Answer & Explanation Answer: B) COUNT

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Q:

In the following question, a word has been written in four different ways out of which only one is correctly spelt. Select the correctly spelt word.

A) Farenheit	B) Fahrenheit
C) Fahrenheight	D) Fahrenhist

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