$10 \, mL$ of concentrated $H_2SO_4$ $(18 \, M)$ is diluted to $1 \, L$. The approximate strength of the dilute acid is.....$N$

State whether the following statements are true or false:
$(i)$ $^\circ F = \frac{9}{5} (^\circ C) + 32$
$(ii)$ In $1808$,Dalton published the law of chemical combination in the journal "New System of Chemical Philosophy".
$(iii)$ If the molar mass of a dibasic acid is $100$,its equivalent mass is $200$.

Which of the following compounds does not have similarity in their structural aspect?

In potash alum, the ratio of $K^+$ and $SO_4^{2-}$ ions is

Identify the compound formed from elements $X, Y, Z$ having oxidation states $+2, +5, -2$ respectively.

The number of electrons in one molecule of urea $(NH_2CONH_2)$ is