Question

 

An unknown inorganic compound (X) loses its water of crystallization on heating and its aqueous solution gives the following reactions:

(a)  It gives a white turbidity with dilute HCl solution

(b) It decolourises a solution of iodine in potassium iodide

(c)  It gives a white precipitate with silver nitrate solution which turns black on standing.

Identify the compound (X)

Solution

Correct option is

Na2S2O3. 5H2O

 

SIMILAR QUESTIONS

Q1

Which is a pair of paramagnetic species?

Q2

Which of the following alkali metal halides has the lowest lattice energy?

Q3

The hydration energy of Mg2+ is greater than that of

Q4

Among KO2 BaO2 and , unpaired electron is present in 

Q5

For two ionic solids CaO and KI, identify the wrong statement among the following?

Q6

The stability of the following alkali metal chlorides follows the order:

Q7

The product, which is not formed when sodium thiosulphate is added to a natural solution of potassium permanganate, is

Q8

The pair of compound which can exist together in aqueous solution is

Q9

Which pair does not show hydrogen isotopes?

Q10

In photography, sodium thiosulphate is used for