UPSC

Water gas is a mixture of

• Carbon monoxide and water

• Carbon dioxide and hydrogen

• Carbon monoxide and hydrogen

• Carbon monoxide and nitrogen

Which of the following is known as water glass

• Sodium silicate

• Calcium silicate

• Sodium oxide

• Calcium nitrate

Which of the following is added to delay the setting of cement

• Calcium

• Gypsum

• Plaster of Paris

• Phosphorus

The equivalent mass of a bivalent compound is x what is the molar mass of the compound

• X / 2

• 2X

• X²

• X+2

Which is known as blue vitriol

• Copper nitrate

• Copper sulphate

• Sulfuric acid

• Sodium sulphate

Which of the following has positive electron gain enthalpy

• Chlorine

• Fluorine

• Nitrogen

• Sodium

What is the ratio of HCL and HNO3 in Aqua Razia

• 2:3

• 1:3

• 3:1

• 3:2

Which of the following has least electron gain enthalpy

• Fluorine

• Chlorine

• Bromine

• Oxygen

which of the following is not used in making cement

• Alumina

• Line Store

• Gypsum

• Rock salt

Which of the following is used in a photo chromatic glass

• Zinc chloride

• Calcium phosphate

• Silver Bromide

• Strontium nitrate