Egg shells on treating with dilute mineral acids give brisk effervenceses. Why? 

On treating with dilute acidic solution sucrose gives

(A) Boiling points of acids are higher than the corresponding alcohols. (R) Esters are hydrolysed with dilute mineral acids to give carboxylic acids.

Acetaldehyde when treated with dilute NaOH gives

2.5 grams of a divalent metal carbonate on treating with excess dilute mineral acid liberated a gas,which was measured at 1 atm and 273K as 5.6L. Calculate the atomic weight of the metal present in the given salt.

Give examples of natural acids and mineral acids.

Which of the four test tubes containing the following chemicals shows the brisk effervescence when dilute acetic acid was added to them? i) KOH ii) NaHCO_3 iii) K_2 CO_3 vi) NaCl

Marble stone is not treated with diluted sulphuric acid to prepare carbon dioxide. Why?

An aqueous solution of a substance gives a white precipitate on treatment with dilute hydrochloric acid, which dissolves on heating. When hydrogen sulphide is passed through the hot acidic solution, a black precipitate is obtained. The substance is a :

Egg shell release…………………gas when it reacts with acids.