411.

Chlorine is least reactive in

• methyl chloride

• ethyl chloride

• vinyl chloride

• allyl chloride

Which of the following compounds gives metal on heating?

• AgNO₃

• Ca(NO₃)₂

• Ni(NO₃)₂

• Pb(NO₃)₂

Which of the following compound liberate Cl₂ gas when react with I₂ ?

• Potassium permanganate

• Potassium chlorate

• Hypo

• Potassium dichromate

Which of the following reactions give oxygen gas?

$$\begin{gathered} 1. {\mathrm{KMnO}}_4 + 2\mathrm{KF} + {\mathrm{H}}_2{\mathrm{O}}_2 \stackrel{50\% \mathrm{HF}}{\to } \\ 2. {\mathrm{F}}_2 + \mathrm{NaOH} \to \\ 3. {\mathrm{XeF}}_2 + 2{\mathrm{H}}_2\mathrm{O} \to \\ 4. {\mathrm{Hg}}_2{\mathrm{CrO}}_4\to \end{gathered}$$

• 1,2, 3

• 1,3, 4

• 2, 3, 4

• 1,2, 4

Neon atom requires energy to remove one electron from its outermost orbit, so also to add one electron into the outermost orbit.

Which of the following is correct about fluorine?

I. Fluorine releases energy when an electron is removed.

II. Fluorine requires energy to add one electron.

• (I) and (II) are correct

• (I) is correct, (II) is false

• (I) is false, (II) is correct 

• (I) and (II) are false

Strongest bond among halogens is in

• F₂

• Cl₂

• Br₂

• I₂

The correct order of ionic radius of nitrogen family is

• N^3- < P^3- < As^3- < Sb^3- < Bi^3-

• N^3- < P^3- < Sb^3-

• P^3- = As^3- > Bi^3-

• N^3- > Bi^3- > Sb^3-

First ionisation potentials of nitrogen and oxygen in eV respectively are

• 14.5, 13.6

• 13.6, 14.5

• 13.6, 13.6

• 14.6, 14.6

Arrange the following as per increasing, order of ionic size Mg²⁺, O^2-, Na⁺, F^-, N^3-

• N^3- < O^2- < F^-< Na⁺< Mg²⁺

• O^2- < F^-< N^3- < Mg²⁺ < Na⁺

• Na⁺< Mg²⁺ < O^2- < N^3- < F^-

• Mg²⁺ < Na⁺ < F^-< O^2-<N^3- 

The set of compounds in which the reactivity of halogen atom in the ascending order is

• vinyl chloride, chloroethane, chlorobenzene

• vinyl chloride, chlorobenzene, chloroethane

• chloroethane, chlorobenzene, vinyl chloride

• chlorobenzene, vinyl chloride, chloroethane