Question

these questions.
Q17. Read the following and answer any four questions from 17 (1) to 17 (v).
Reactive metals can displace less reactive metals from their compounds in solution or molten form.
Displacement reaction gives better evidence about reactivity of metals.
Four A.B.C.D are added to the following aqueous solution one by one. The observation made are tabula
Iron(II) sulphate Copper (ID)
Zinc sulphate
Silver sulphate
sulphate
A No Reaction
Reddish brown
deposit
B Grey deposit
No Reaction
C No Reaction
No Reaction
No Reaction White shining
deposit
D No Reaction
No Reaction
No Reaction
No Reaction
(i) The most reactive metal is-
(a) A
(b) B
(c) C
(d) D
(ii) Container of which metal can be used to store both silver nitrate as well as zinc sulphate solutions?
(a) Metal A
(b) Metal B (c)Metal C (d) Metal D
(iii) Which of the above solutions can be easily stored in a container made up of any of these metals?
(a) Iron sulphate (b) Copper sulphate (c) Zinc sulphate (d) Silver nitrate
(iv) What would be observed if B is added to copper (II) sulphate solution?
(a) B will not be able to displace Cu from copper sulphate solution.
(b) B will displace Cu from copper sulphate solution.
(c) No reaction will occur. (d) Precipitate formation will occur.
(V) Arrange the metals A, B, C and D in order of increasing reactivity.
(a) D<C<A<B
(b) D<A<C<B
(c)A B C D
(a)B<D<C<A A​

Answer 1

Answer:

the most reactive metal is platinum