Chemistry in Everyday Life

Who introduced the use of disinfectant agents to clean surgical wounds in order to control infections in humans?

The attraction between two dissimilar molecules is:

The particles of semi-colloids have size (diameter) round about:

The total volume of water on melting:

Which mild base is use for relief after being stung by a honey bee?

Which of the following cakes is not edible?

The water can be made to boil even at $0$°C if the pressure of surrounding is _____.

Which one of the following statements is not correct?

The anti-COVID-$19$ drug$2-\mathrm{DG}$ is recently developed by the Institute of Nuclear Medicine and Allied Sciences (INMAS), Defence Research and Development Organization (DRDO) in collaboration with Dr Reddy's Laboratories (DRL). The drug is

Which of the following is NOT a use of washing soda?

Litmus paper changes to ______ colour when put in soap water.

The substance that cannot be used as an insecticide is:

The substances obtained by heating a caustic soda solution with linseed oil can be used as:

1. A fuel

2. An animal fodder

3. A soap

4. A plastic

The correct applications are:

Enzymes are used to:

1. Improve the performance of detergents

2. Make beer

3. Process food

4. Digest food

Which of the above are true?

Which one of the following statements is not true for monosodium glutamate (MSG)?

Which bleaching agent is present in bleaching powder?

Consider the following statements :
(i) Washing soda on strong heating gives sodium oxide and carbon dioxide.
(ii) Plaster of Paris is obtained by heating gypsum at $373$K.
(iii) Bleaching powder is used for disinfecting drinking water.
Which of these statements(s) is/are correct?

Which of the following can be used for removal of stains of rust on clothes?
$1.$ $H_2{O}_2$
$2.$ Oxalic acid
$3.$ Petrol
$4.$ Alcohol

Consider the following statements: Hard water is not suitable for:
1. Drinking
2. Washing clothes with soap
3. Use in boilers
4. Irrigating crops
Which of these statements are correct?

Which compound is used as an air purifier?