State whether the following statement is true or false:
Non-metals are lustrous and good conductors of heat and electricity.

How can we obtain a coloured component (dye) from blue/black ink?

$(a)$ $7\, g$ of iron filings and $4\, g$ of sulphur powder is treated with dilute sulphuric acid at room temperature. Name the gas produced.
$(b)$ The same mixture is heated strongly,cooled and then treated with dilute sulphuric acid. Which gas would be produced?
$(c)$ What is the cause of this difference in results of chemical reaction in different conditions?

Which of the following will show the "Tyndall effect"?

Can we separate alcohol dissolved in water by using a separating funnel? If yes,then describe the procedure. If not,explain.

$A$ mixture of sulphur and carbon disulphide is