NEET 2021 Question Paper Mock Test

${\text{BF}}_3$ is planar and electron deficient compound. Hybridization and number of electrons around the central atom, respectively are:

Which of the following reactions is the metal displacement reaction? Choose the right option.

The compound which shows metamerism is:

The $p{K}_b$ of dimethylamine and $p{K}_a$ of acetic acid are $3.27$ and $4.77$ respectively at $T(K)$. The correct option for the $pH$ of dimethyl ammonium acetate solution is:

The structure of beryllium chloride in solid state and vapour phase, are: