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Reaction of Acids with Metals

Complete the ...

Question

Complete the following sentence, choosing the correct word from the brackets.
"Concentrated sulphuric acid is used in the laboratory preparation of nitric acid and hydrochloric acid because it is ................ (less volatile/stronger) in comparison to these two acids."

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Solution

Concentrated sulphuric acid is used in the laboratory preparation of nitric acid and hydrochloric acid because it is less volatile in comparison to these two acids.

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Q. Choose the correct word from the brackets to complete the sentences.
(i) Sulphur can be converted to sulphuric acid using ......... (concentrated/dilute) nitric acid.
(ii) Write the equation for the reaction in 2 (i).

Q. (a) Write a balanced chemical equation for the laboratory preparation of nitric acid.
(b) In the preparation of nitric acid from

K N O_{3}

, concentrated hydrochloric acid is not used in place of concentrated sulphuric acid. Explain why.
(c) Conc. nitric acid prepared in laboratory is yellow in colour. Why? How is this colour removed? [4 MARKS]

Q. Which salt is used along with concentrated sulphuric acid for the laboratory preparation of nitric acid?

In the laboratory preparation of Nitric Acid, the role of concentrated sulphuric acid is

The correct equation for the laboratory preparation of nitric acid from potassium nitrate and concentrated sulphuric acid is

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