Acids Bases and...

Acids generate ______ and bases generate ________ ions in water.

Which of the following is not a property of an alkali?

Statement A: Tamarind contains tartaric acid
Statement B-  Vinegar contains acetic acid
Choose the correct option:

X is a colourless gas with a distinct odour which consist of nitrogen and hydrogen atoms. It is produced naturally in the human body and in nature. Which gas is it? Is it acidic or basic in nature?

Which one of the following can be used as an acid-base indicator by a visually impaired student?

Calcium phosphate is present in tooth enamel. Its nature is __________.

Sodium carbonate is a basic salt because it is a salt of:

Sodium hydrogen carbonate when added to acetic acid evolves a gas. Which of the following statements are true about the gas evolved?
(i) It turns lime water milky.
(ii) It extinguishes a burning splinter.
(iii) It dissolves in a solution of sodium hydroxide.
(iv) It has a pungent odour.

Which of the following is used for dissolution of gold?

If a few drops of a concentrated acid accidentally spills over the hand of a student, what should be done?