What did you do to know whether artificial fibres give pungent smell while burning? Write the steps of your experiment.

What precautions do you take while burning sulphur ?

What did you eat yesterday make a list ask your classmates what they ate yesterday and write in the table below

What precautions do you need while removing test tube from the beaker? Discuss with your teacher.

What do you know about Castner-Kellner process? Write the principle involved in it.

Let us suppose you have two blocks and you do not know what material they are made of. The volume of one block is 30cm^(3) while the other is 60cm^(3). The second block is heavier than the first. Based on this information, can you tell which of the two block is denser ?

How do you count the following observations? a) Though alkaline potassium permanganate and acidic potassium permanganate both are used as oxidants, yet in the manufacture of benzoic acid from toluene we use alcoholic potassium permanganate as an oxidant. Why ? Write balanced redox equation for the reaction. b) When concentrated sulphuric acid is added to inorganic mixture containing chloride, we get colourless pungent smelling gas HCl, but if the mixture contains bromide then we get red vapour of bromine. Why ?

You want ot talk to your drill teacher about muscular pain while doing exercise Write some questions that you ask him

When you step on a sharp object what would you do? You will take back your. feet. Is it not? Discuss with your friend how would we respond in the conditions given in table-2.