The surface of the concrete structure of a new construction is covered with straw/gunny bags by wetting. This is done to :

With reference to 'Baking Soda', which of the following statements is/are correct? 1. It is Sodium hydrogen carbonate. 2. It is used in fire extinguishers.

Common salt (NaCl) is not used as a raw material for preparation of which one of the following compounds ?

Consider the following statements about Tincture of Iodine : 1: It is an antiseptic solution. 2. Iodine is kept in alcohol-water mixture. 3. Concentration of iodine is very low. How many of the above…

Consider the following statements: 1. Carbon fibres are used in the manufacture of components used in automobiles and aircrafts. 2. Carbon fibres once used cannot be recycled. Which of the statements…

With reference to green hydrogen, consider the following statements: 1. It can be used directly as a fuel for internal combustion. 2. It can be blended with natural gas and used as fuel for heat or p…