In &nbsp;the following questions, a statement of Assertion (A) is given followed by a corresponding statement of Reason (R) just below it. Of the statement mark the correct answer.(A) : Kilo-watt hour is the unit of electric power. (R) : KWH is a commercial unit used for expressing consumed electric energy.

If x – 2 is a factor of <math><mrow><msup><mi>x</mi><mn>2</mn></msup><mo>+</mo><mn>6</mn><mi>x</mi><mo>+</mo><mn>16</mn><mi>b</mi></mrow></math><xml> </xml>, then b =

Which of the following catalyst is used in the Esterification of ethanoic acid?

The common name of ethanoic acid is ______________.

In the form of dichromate, Cr (VI) is a strong oxidizing agent in acidic medium but Mo (VI) is &nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>M</mi><mi>o</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp;and W (VI) in&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>W</mi><msub><mi>O</mi><mn>3</mn></msub></math>&nbsp; are not because ___________ (i) Cr (VI) is more stable than Mo (VI) and W (VI) (ii) Mo (VI) and W (VI) are more stable than Cr (VI) (iii) Higher oxidation states of heavier members of group-6 of transition series are more stable. (iv) Lower oxidation states of heavier members of group-6 of transition series are more stable. &nbsp;

Yellow stains on the fingers while working with nitric acid are due to the presence of

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