An isotope has an atomic number of 15 and a mass number of 31. The number of protons it contains is

\( \mathrm{N_2O_4(aq)} \rightleftharpoons 2\mathrm{NO_2(g)} \quad \triangle H = +\mathrm{ve} \) In the reaction above, an increase in temperature will

In a neutralization reaction involving HCI and NaOH using litmus as indicator, the colour at the end point is

n monosaccharide \( \underset{Q}{\overset{P}{\rightleftharpoons}} \) polysaccharide -n water. In the process above, P and Q respectively represent

An example of a solid emulsion is

In the extraction of iron, the waste gas from the furnace is a mixture of

\(\mathrm{CH_4(g) + CI_2(g) \rightarrow CH_2CI(s) + HCI_g}\) The major factor that influences the rate of the reaction above is

The gas that is used for the treatment of cancer is

Diamond cannot be used