Question

Choose the correct alternate :
() The pH value of water is
(a) less then 7
(b) 7,
(c) more than 7
(d) none of these
(ii) The valency of carbon is-
(a) 1.
(b) 2.
(c) 3,
(iii) The number of periods in periodic table is-
(a) 4.
(b) 6,
7.
(d) 8,
(iv) The S.l. unit of electric current is
(a) joule,
(b) watt
(c) volt,
b) ampere.
(v) The device which converts electric energy into mecbanical enery
(electric motor,
(b) electric generator
(c) aineter
(d) voltmeter.​

Answer 1

Answer:

1. b

2. b

3. c

4. d

5 . a

Explanation:

Answer 2

Answer:

i) (b) 7

(ii) d) 4

(iii) (c) 7

(iv) (b) ampere

(v) (a) electrical motor