Taxon is a

Chlorination of toluene in the presence of light and heat followed by treatment with aqueous $NaOH$ yields:

If $x + \sqrt{x^2 + 1} = a$,then $x =$

Spirochetes are ........

When $22.4 \ L$ of $H_{2(g)}$ is mixed with $11.2 \ L$ of $Cl_{2(g)}$,each at $S.T.P.$,the moles of $HCl_{(g)}$ formed is equal to

There is an error of $\pm 0.04 \text{ cm}$ in the measurement of the diameter of a sphere. When the radius is $10 \text{ cm}$,the percentage error in the volume of the sphere is