Q:

Which compound forms a colored aqueous solution?

A) CrCl3	B) KBr
C) CaCl2	D) NaOH

Answer & Explanation Answer: A) CrCl3

Explanation:

Colored aqueous solutions are a characteristic of transition compounds.

The only transition compound in the above choices is CrCl3.

Cr is a transition element.

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Filed Under: Chemistry
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5 6641

Q:

Which type of molecule is CF4?

A) nonpolar, with a symmetrical distribution of charge	B) polar, with an asymmetrical distribution of charge
C) nonpolar, with an asymmetrical distribution of charge	D) polar, with a symmetrical distribution of charge

Answer & Explanation Answer: A) nonpolar, with a symmetrical distribution of charge

Explanation:

CF4 is tetrahedral.

Since the four 'F' atoms have the same electronegativity values, there is no bias in electron distribution toward any one.

Therefore, electron/charge distribution is symmetrical, which also means that the molecule is nonpolar.

Hence, CF4 is nonpolar molecule with a symmetrical distribution of charge.

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3 6627

Q:

NREGP is the abbreviated form of

A) National Rural Employment Guarantee Programme	B) National Rural Educational Guarantee Programme
C) National Rapid Employment Guarantee Programme	D) National Rapid Educational Guarantee Programme

Answer & Explanation Answer: A) National Rural Employment Guarantee Programme

Explanation:

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Filed Under: Indian Economy

11 6627

Q:

Gujarat is noted for the cultivation of

A) Cotton	B) Sugarcane
C) Saffron	D) Jute

Answer & Explanation Answer: A) Cotton

Explanation:

Black soil coupled with favorable climatic conditions (Temperature of $21 - 32^{0} C$ and 30 -100 cm of rainfall) are responsible for cotton cultivation in Gujarat.

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Filed Under: Indian Geography
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15 6615

Q:

When a steel ball is placed on the surface of mercury, it does not sink because

A) of the surface tension of mercury	B) mercury is a semisolid
C) of the high viscosity of mercury	D) the density of mercury is greater than that of steel

Answer & Explanation Answer: D) the density of mercury is greater than that of steel

Explanation:

A solid sinks in a liquid if its density is greater than that of the liquid. if less, it floats

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Filed Under: Physics

8 6610

Q:

The sultan who completed the conquest of the south and broke the political barriers between the north and the south was

A) Alauddin Khalji	B) Ghiyasuddin-bin Tughluq
C) Muhammad bin Tughluq	D) Firuz Tughluq

Answer & Explanation Answer: C) Muhammad bin Tughluq

Explanation:

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Filed Under: Indian History

9 6607

Q:

The book ' Discovery of India ' is written by

A) Maithilisharan Gupt	B) Mahadevi Verma
C) Ramdhari Singh Dinkar	D) Surya Kant Tripathi Nirala

Answer & Explanation Answer: C) Ramdhari Singh Dinkar

Explanation:

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Filed Under: Books and Authors

14 6606

Q:

When white light passes through a glass prism we get a spectrum on the other side of the prism. In the emergent beam the ray which is deviated least is

A) the violet ray	B) the red ray
C) the green ray	D) the blue ray

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