Identify the type of hybridization involved in hexaamminecobalt (III) complex ion?

Which among the following molecules has lowest bond dissociation enthalpy?

Which among the following is NOT a true statement regarding enantiomers?

Which from following is NOT a salient feature of Watson and Crick model for DNA?

Which of the following salts turns red litmus blue in its aqueous solution?

Identify the product ' \(\mathrm{B}\) ' in the following sequence of reactions.
\(
\mathrm{CH}_3 \mathrm{Br} \stackrel{\mathrm{KCN}}{\longrightarrow} \mathrm{A} \stackrel{\mathrm{Na}^2 \mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}}{\longrightarrow} \mathrm{B}
\)

The \(\mathrm{pH}\) of a \(10^{-8}\) molar solution of \(\mathrm{HCl}\) in water is

A mixture of ethyl amine and alcoholic KOH on heating gives

What is the general molecular formula of aldehydes?

If \(\overrightarrow{\mathbf{a}}, \overrightarrow{\mathbf{b}}, \overrightarrow{\mathbf{c}}\) are three non coplanar vectors and \(\overrightarrow{\mathbf{p}}, \overrightarrow{\mathbf{q}}, \overrightarrow{\mathbf{r}}\) are defined by the relations
\(\overrightarrow{\mathbf{p}}=\frac{\overrightarrow{\mathbf{b}} \times \overrightarrow{\mathbf{c}}}{[\overrightarrow{\mathbf{a}} \overrightarrow{\mathbf{b}} \overrightarrow{\mathbf{c}}]}, \quad \overrightarrow{\mathbf{q}}=\frac{\overrightarrow{\mathbf{c}} \times \overrightarrow{\mathbf{a}}}{[\overrightarrow{\mathbf{a}} \overrightarrow{\mathbf{b}} \overrightarrow{\mathbf{c}}]}\) and \(\overrightarrow{\mathbf{r}}=\frac{\overrightarrow{\mathbf{b}} \times \overrightarrow{\mathbf{a}}}{[\overrightarrow{\mathbf{a}} \overrightarrow{\mathbf{b}} \overrightarrow{\mathbf{c}}]}\)
then \(\overrightarrow{\mathbf{a}} \cdot \overrightarrow{\mathbf{p}}+\overrightarrow{\mathbf{b}} \cdot \overrightarrow{\mathbf{q}}+\overrightarrow{\mathbf{c}} \cdot \overrightarrow{\mathbf{r}}\) is equal to

The current flowing in a coil is 3 A and the power consumed is 108 W . If the a.c. source is of \(120 \mathrm{~V}, 50 \mathrm{~Hz}\), the resistance in the circuit is

A transformer is a device which converts

The ratio of energies of photons produced due to transition of electron of hydrogen atom from its (i) second to first energy level and (ii) highest energy level to second energy level is