0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

An element 'X' is yellow coloured solid, insoluble in water but soluble in carbon disulphide. It has a low melting point 114.5oC. It boils at 445oC and it burns with pale blue flame forming pungent smelling gas 'Y' which turns moist blue litmus red and finally colourless. 'X' and 'Y' are:
  1. C, CO2
  2. N, NO2
  3. S, SO2
  4. I2, I2O5

A
C, CO2
B
N, NO2
C
S, SO2
D
I2, I2O5
Solution
Verified by Toppr

Sulphur is yellow colored solid, Carbon is black, nitrogen is colorless gas, Iodine or I2 lustrous metallic gray, violet as a gas.
Sulpur is yellow coloured solid, insoluble in water but soluble in carbon disulphide. It has low melting point 114.5^0C. It boils at 445oC and it burns with pale blue flame forming pungent smelling gas SO2 which turns moist blue litmus red and finally colorless.
Thus Option C is correct.
257073_208182_ans.jpg

Was this answer helpful?
0
Similar Questions
Q1
An element 'X' is yellow coloured solid, insoluble in water but soluble in carbon disulphide. It has a low melting point 114.5oC. It boils at 445oC and it burns with pale blue flame forming pungent smelling gas 'Y' which turns moist blue litmus red and finally colourless. 'X' and 'Y' are:
View Solution
Q2

Ammonia is a brown coloured, pungent-smelling gas which turns moist blue litmus paper into the red colour.


View Solution
Q3
Colourless compound X obtained from sea water used in daily meals is taken in a test tube. Concentrated H2SO4 was added to the test tube. A pungent smelling gas Y comes out which does not affect dry blue litmus paper but turns moist blue litmus paper red. Identify X and Y. Write the chemical reactions involved.
View Solution
Q4
An element X when heated is oxygen, above 300 C burns with a pale blue flame to give a colourless gas Y and traces of gas Z. Identify X, Y and Z.
View Solution
Q5
When substance X burns in air, it produces oxide Y that turns a moist blue litmus paper red. Which of the following observations regarding Y is incorrect?
View Solution