Question

I. CHOOSE THE CORRECT ANSWER: (6 X 1 = 6)

1. Electric power is the product of___________.

a)P=WI b)P=RI c)P=VI d)P=Vt

2. The frequency, which is audible to the human ear is________.

a)50KHz b)20KHz c)15000KHz d)10000KHz

3. Nuclear fusion is possible only at an extremely high temperature of the order of______.

a)107

to 109K b)108

to 1010 K c)109

to 1011 K d)105 to 108

K

4. Powdered CaCo3 reacts more rapidly than flaky CaCo3 because of______.

a)large surface area b)high pressure c)high concentration d)high temperature

5._______ is added to prevent the caking of the detergent powder.

a)Enzymes b)Sodium sulphate c)Sodium silicate d)Sodium perborate

6. The secondary suffix used in IUPAC nomenclature of an alcohol is _______.

a) -ol b) -oic acid c) -al d) -one





IT is a one mark.plesa say the correct answer​

Answer 1

Answer:

1 - (d)

2 - ( b)

3 - (b)

4 - (c)

5 - (b)

6 - (c)

may be all answer is right