Saloni took a piece of burning charcoal and collected the gas evolved in test tube How will she find the nature of gas ?.

Saloni took a piece of burning charcoal and collected the gas evolved in test tube Write down word equations of all the reactions taking place in this process.

Pratyush took sulphur powder on a spatula and heated it. They collected the gas evolved by inverting a test tube over it, as shown in figure below. (a) What will be the action of gas on : (i) dry litmus paper ? (ii) moist litmus paper ? (b) Write a balanced chemical equation for the reaction taking place.

Pratyush took sulphur powders on a spatula and heated it. He collected the gas evolved by invertinv a test tube over it, as shown in figure below. a. What will be the action of gas on (i) dry litmus paper (ii) Moist litmus paper b. Write a balanced chemical equation for the reaction taking place.

2 ml of NaOH solution is added to a few pieces of granulated zinc metal taken in a test tube. When the contents are warmed, a gas evolves which is bubbled through a soap solution before testing. (i) Write the equation of the chemical reaction involved and the test to detect the gas. (ii) Name the gas which will be evolved when the same metal reacts with dilute solution of a strong acid.

What do you observe when you drop a piece of sodium into ethanol? Name the gas evolved. How do you test this gas? Write the chemical equation for the reaction.

During electrolysis of water the amount of gas collected in one of the test tubes is double the amount collected in the other why ?

When zinc metal is treated with a dilute solution of a strong acid, a gas is evolved, which is utilised in the hydrogenation of oil. Name the gas evolved. Write the chemical equation of the reaction involved and also write a test to detect the gas formed.