The gas that can best be collected by downward displacement of air is

Which of the following metals burn with brick red flame?

Which of the following represent hybridization in ethyne?

\(C_{12}H_{22}O_{11(s)} + H_2SO_{4(aq)} → 12C(s) + 11H_2O(l) + H_2SO_{4(aq)}\)
In the reaction above, tetraoxosulphate (VI) acid function as

When sodium reacts with water, the resulting solution is