Question : White phosphorus is always kept under:

Option 1: Benzene

Option 2: kerosene

Option 3: Ether

Option 4: Water

Question : Two equal glasses filled with alcohol and water in the proportions 2 : 1 and 3 : 2 are emptied into a third glass. The proportion of alcohol and water in the third glass will be:

Option 1: 13 : 17

Option 2: 19 : 17

Option 3: 13 : 11

Option 4: 19 : 11

Question : In a mixture of 25 litres, the ratio of acid to water is 4 : 1. Another 3 litres of water is added. The ratio of acid to water in the new mixture is:

Option 1: 5 : 2

Option 2: 2 : 5

Option 3: 3 : 5

Option 4: 5 : 3

Question : Which of the following is colourless?

Option 1: Chlorine

Option 2: Oxygen

Option 3: Phosphorus

Option 4: Sulphur

Question : What is a brine solution?

Option 1: Excess salt + water

Option 2: Silver

Option 3: Excess ethanol + water

Option 4: Excess starch + water