Question

A man went door to door posing as a goldsmith. He promised to bring back the glitter of old and
dull gold ornaments. An unsuspecting lady gave a set of gold bangles to him which he dipped in a
particular solution. The bangles sparkled like new but their weight was reduced drastically. The
lady was upset but after a futile argument, the man beat a hasty retreat.

(iii) Which of the following statement is true about the mixture of A and B?
(i) There are 3 parts of A and I part of B.
(in There is 1 part of A and 3 part of B.
(iii) The mixture of A and B is acidic in nature.
(iv) The mixture of A and B is basic in nature.
(a) i, iii) (b)(ii, iii) (c) (i, iv) (d) (ii, iv)

18. (iv) The gold bangles weight was reduced because
(a) the solution he used, react with gold and vanish it
(b) that man changed the bangles with lighter one
(c) that man cut and theft some tiny pieces from bangles
(d) the solution he used, that dissolve gold in it

18. (v) When Zn metal is reacted with B.
(a) the solution remains colourless, H, gas is evolved
(b) chlorine gas is evolved
(c) no reaction takes place
(d) the solution becomes blue and H, gas is evolved​

Answer 1

Answer:

The gold bangles weight was reduced because that man changed the bangles with lighter one