Which of the following is the correct set of apparatus for fractional distillation?

The sequence of steps for separating a mixture of salt, sand and camphor is:

Four samples A, B, C, D are prepared by adding a pinch of copper sulphate, a spatula of copper sulphate, a spatula of chalk powder, and some milk, to water respectively. Which of these will exhibit the Tyndall effect?

When a bottle of soda water is opened, carbon dioxide escapes, producing a fizz. This is due to

Which of the following property does not describe a compound?

When two liquids do not mix, they form two separate layers and are known as

Which of the following elements is not a metalloid?

In tincture of iodine, find the solute and solvent?

Four samples A, B, C, D are prepared by adding a pinch of copper sulphate, a spatula of copper sulphate, a spatula of chalk powder, and some milk, to water respectively. Which of these will form a clear and transparent solution:

According to the definition of pure substance, which of the following is a pure substance?