Question

choose the correct option
1. Q.1 When Sodium chloride combines with Silver nitrate, precipitate of _____ is formed

a) sodium nitrate

b) Silver oxide

c) Silver chloride

d) None of above

Q.2 Zinc chemically combines with copper sulphate - What type of reaction is it

a) Combination

b) decomposition

c) Single displacement

d) double displacement

Q.3 In the activity series, Ca is more reactive than

a) K

b) Na

c) Zn

d) None of above

Q,4 Acid + base is

a) Oxidation reaction

b) Redox reaction

c) Neutralization reaction

d) precipitation reaction H
​

Answer 1

Answer:

(a) Chemical reaction of iron nail with copper sulphate solution in water. ... successively dipping the rubber cork in beakers B, C, and D.

Answer 2

1.d

2.c

3.a

4.c

Answers.....