Who named the gas hydrogen?

IUPAC name of the hydrogen (A) is :

How did the name 'hydrogen' originate?

Name a gas (other than hydrogen chloride gas) which gives dense white fumes with ammonia.

Give a chemical test to distinguish between the following pairs of compounds: Hydrogen chloride gas and hydrogen sulphide gas.

An element reacts with hydrogen to form a compound X which on treatment with water liberates hydrogen gas. The element can be

Name the gas evolved: Ethene undergoes hydrogenation reaction.

Name two metals that can displace hydrogen from dilute acids to form metal salts and hydrogen gas.

Name the following substance : A yellow non-metal formed when hydrogen sulphide gas is passed through concentrated acid.

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 wrote a test to detect the gas formed.

When you add sodium hydrogen carbonate to acetic acid in a test tube, a gas liberates immediately with a brick effervescence. Name this gas. Describe the method of testing this gas.