Question

4. The combining capacity of an element is called its.
a. atonicity
d. valency
b. chemical formula c. precipitate
5. Which of these is a natural indicator?
a. litmus
b. Phenolpthalein c. methyl orange d. none of these
Q.2 Fill in the blanks using the words given in the box.
(Muga, 7, AICI3, hygrometer , kelvin)
1. The pH of neutral substance is.....
2. The ........
.... scale of temperature is used for scientific purposes.
3. Instrument to measure humidity is called a.....
4. The chemical formula of aluminium chloride is........
5 Mohair is an animal fibre that is obtained from a type of.........
1​

Answer 1

Answer:

A4) Valency

A5) Litmus

Q2)a) 7

b) Kelvin

c) Hygrometer

d) AICI3

e) Muga