Q:

The fact that the planets move around the Sun, not in circles but in ellipses, was first demonstrated by

A) Galileo	B) Martin Luther
C) Johannes Kepler	D) Copernicus

Answer & Explanation Answer: C) Johannes Kepler

Explanation:

Kepler’s laws of planetary motion state that (a) All planets move in elliptical orbits with the Sun at one of the focal points (b) The radius vector drawn from the sun to a planet sweeps out equal areas in equal time intervals. This follows from the fact that the force of gravitation on the planet is central and hence angular momentum is conserved. (c) The square of the orbital period of a planet is proportional to the cube of the semi major axis of the elliptical orbit of the plane.

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Q:

Which of the following statements about water is false?

A) There is extensive intramolecular hydrogen bonding in the condensed phase.	B) Water is oxidized to oxygen during photosynthesis.
C) Ice formed by heavy water sinks in normal water.	D) Water can act both as an acid and as a base.

Answer & Explanation Answer: A) There is extensive intramolecular hydrogen bonding in the condensed phase.

Explanation:

Water possess intermolecular hydrogen bonding in the condensed phase.

Hence, the given statement 'There is extensive intramolecular hydrogen bonding in the condensed phase.' about water is FALSE.

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Q:

Name the President of India who was elected unopposed?

A) Dr. Neelam Sanjiva Reddy	B) Dr. Zakir Husain
C) Dr. Shankar Dayal Sharma	D) Dr. Fakhruddin Ali Ahmed

Answer & Explanation Answer: A) Dr. Neelam Sanjiva Reddy

Explanation:

The President of India who was elected unopposed was Dr. Neelam Sanjiva Reddy.

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Q:

An electric iron of 750 W is used for S hours per day. Then the energy consumed in one day by the iron is:

A) 6 units	B) 600 units
C) 0.6 units	D) 60 units

Answer & Explanation Answer: A) 6 units

Explanation:

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Q:

For a certain reaction,DGq = -45 kJ/mol and DHq= -90 kJ/mol at 0°C. What is the minimum temperature at which the reaction will become spontaneous, ifDHq and DSq are independent of temperature?

A) 273 K	B) 298 K
C) 546 K	D) 596 K

Answer & Explanation Answer: C) 546 K

Explanation:

T = 273 °K

Using the formula,

DGq = DHq –TDS

-45 = -90 –273 DS

DS = 0.164

Now since DHq and DSq are independent,T2= DH/DS = 45/0.164 = 273°K

Required Temp = 273 + 273 = 546°K

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Q:

In which year a new “Liberalized Industrial Policy” in India was announced for the first time?

A) 1991	B) 1992
C) 1986	D) 1993

Answer & Explanation Answer: A) 1991

Explanation:

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Q:

The largest expenditure component of GDP is

A) Consumption	B) Net exports
C) Government spending	D) Investments

Answer & Explanation Answer: A) Consumption

Explanation:

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Q:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.
Phobia of dogs

A) Orophobia	B) Cynophobia
C) Vatrachophobia	D) Phemophobia

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