Explanation

In methyl chloride (CH₃Cl), carbon forms three C–H sigma bonds by sp³–s overlap.

The fourth bond (C–Cl) is formed by sp³–p overlap, not sp³–s.

Explanation

The rate constant K relates reaction rate to reactant concentrations.

It is called the specific rate constant because it gives the rate per unit concentration of reactants.

Explanation

Formic acid + Ethanol in presence of acid catalyst → Ethyl formate (an ester).

This reaction is known as esterification.

Explanation

Metamerism is a type of structural isomerism, not stereoisomerism.

Stereoisomerism includes optical and geometrical isomerism, which differ in spatial arrangement.

Explanation

A state function depends only on the system’s initial and final states, not on the path.

Work depends on the process or path taken, so it is not a state function.

Explanation

Standard temperature and pressure (STP) are 0°C (273 K) and 1 atm (14.7 psi or 760 mmHg).

These are the reference conditions for gas measurements.

Explanation

Explanation

Reaction: N₂ + 3H₂ → 2NH₃

6 g H₂ produce 34 g NH₃ → To get 51 g NH₃, 6/34 × 51 = 9 g H₂ required.

Explanation

Geometrical (cis–trans) isomerism requires restricted rotation and different groups on each double-bonded carbon.

In pent-1-ene, one carbon of the double bond has two identical hydrogen atoms, so no geometrical isomerism is possible.

Explanation

Higher ionization energy means the atom holds its electrons tightly.

Such elements lose electrons less easily, so their metallic character decreases.