Name the Following. the Salt Formed When Aluminium Reacts with Potassium Hydroxide, During the Preparation of Hydrogen from Alkalis. - Chemistry

Name the following.

The salt formed when aluminium reacts with potassium hydroxide, during the preparation of hydrogen from alkalis.

One Line Answer

Potassium metal aluminate

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Application of Activity Series in the Preparation of Hydrogen

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Chapter 6 Study Of The First Element — Hydrogen
Hydrogen | Q 4.3

A small piece of calcium metal is put into a small trough containing water. There is effervescence and white turbidity is formed.

Name the gas formed in the reaction. How would you test the gas?

Thin strips of magnesium, copper, and iron are taken.

Arrange these metals in descending order of reactivity.

Choose the correct option:

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Which metal is preferred for collecting hydrogen from steam? Write the balanced equation for the case.

Hydrogen is obtained by displacement from:

Write equations using zinc and iron.
Why does copper not show similar behavior?

Write a balanced equation for the reaction named metal with (i) boiling water (ii) steam.

What do you observe when hydrogen gas is passed through a soap solution?

Select the odd one out and justify your answer.

Zn, Fe, Mg, and Na

State why hydrogen is not prepared in the laboratory by the action of calcium with dilute sulphuric acid.

State why hydrogen is not prepared in the laboratory by the action of lead with dilute hydrochloric acid.