An aqueous solution of NaCl

Molten NaCl

Molten NaOH

A molten mixture of ${\mathrm{MgCl}}_2$, and NaCl

Lithium is the strongest reducing agent

Sodium is amphoteric in nature

Li⁺ is exceptionally small

All alkali metals give blue solution in liquid ammonia

 ${\mathrm{HCO}}_3^{-}$

 ${\mathrm{NO}}_3^{-}$

 ${\mathrm{CO}}_3^{2-}$

 ${\mathrm{SO}}_3^{2-}$

Do not exhibit electrical conductivity

Produces sodium amide

Produces hydrogen gas

Chamber

Haber

Leblanc

Castner

 ${\mathrm{Na}}_2\mathrm{S}+{\mathrm{H}}_2\mathrm{O}$

 ${\mathrm{Na}}_2{\mathrm{SO}}_3+{\mathrm{H}}_2\mathrm{O}$

 ${\mathrm{Na}}_2\mathrm{S}+{\mathrm{Na}}_2{\mathrm{S}}_2{\mathrm{O}}_3+{\mathrm{H}}_2\mathrm{O}$

 ${\mathrm{Na}}_2{\mathrm{S}}_2{\mathrm{O}}_3+{\mathrm{H}}_2\mathrm{O}$

 $\mathrm{NaOH},\mathrm{CaO}\text{ and }{\mathrm{NH}}_3$

 ${\mathrm{Na}}_2{\mathrm{CO}}_3,{\mathrm{CaCO}}_3\text{ and }{\mathrm{NH}}_3$

 ${\mathrm{Na}}_2{\mathrm{SO}}_4,{\mathrm{CaCO}}_3\text{ and }{\mathrm{NH}}_3$

 $\mathrm{NaCl},{\mathrm{NH}}_3,{\mathrm{CaCO}}_3$

 BaCO${}_{\mathrm{₃}}$

 BaHSO${}_{\mathrm{₄}}$

 Ba(OH)${}_{\mathrm{₂}}$

weak acid and weak base 

weak acid and strong base 

strong acid and strong base 

  strong acid and weak base

a clear solution 

a crystalline mass

a white precipitate 

bluish white precipitate 

Oxidizing agent .

Reducing agent.

Hydrolyzing agent.

Precipitating agent.

 ${\mathrm{BeCO}}_3<{\mathrm{MgCO}}_3<{\mathrm{CaCO}}_3<Sr{\mathrm{CO}}_3<{\mathrm{BaCO}}_3$

 ${\mathrm{BeCO}}_3<{\mathrm{MgCO}}_3<{\mathrm{BaCO}}_3<{\mathrm{SrCO}}_3<{\mathrm{CaCO}}_3$

 ${\mathrm{BaCO}}_3<{\mathrm{MgCO}}_3<{\mathrm{CaCO}}_3<Sr{\mathrm{CO}}_3<{\mathrm{BeCO}}_3$

 ${\mathrm{BaCO}}_3<{\mathrm{CaCO}}_3<{\mathrm{MgCO}}_3<{\mathrm{SrCO}}_3<{\mathrm{BeCO}}_3$

Assertion is true and the Reason is the correct explanation of Assertion.

Assertion is true but the Reason is not the correct explanation of Assertion.

Assertion is true but the Reason is false.

Both Assertion and Reason are false.

Li⁺, N⁺, K⁺, Rb⁺ and Cs⁺

$$\begin{gathered} 1. {\mathrm{Li}}^{+} > {\mathrm{Na}}^{+} > {\mathrm{K}}^{+} > R^{+} > {\mathrm{Cs}}^{+} \\ 2. {\mathrm{Li}}^{+} < {\mathrm{Na}}^{+ }< {\mathrm{K}}^{+} > {\mathrm{Rb}}^{+} > {\mathrm{Cs}}^{+} \\ 3. {\mathrm{Li}}^{+} < {\mathrm{Na}}^{+} < {\mathrm{K}}^{+} < {\mathrm{Rb}}^{+} < {\mathrm{Cs}}^{+} \\ 4. {\mathrm{Na}}^{+} < {\mathrm{Li}}^{+} < {\mathrm{K}}^{+} < {\mathrm{Cs}}^{+} < {\mathrm{Rb}}^{+} \end{gathered}$$

 ${\mathrm{CaSO}}_4.\frac{1}{2}{\mathrm{H}}_2\mathrm{O}$

 ${\mathrm{CaSO}}_4.2{\mathrm{H}}_2\mathrm{O}$

 ${\mathrm{CaSO}}_4.{\mathrm{H}}_2\mathrm{O}$

 $3{\mathrm{CaSO}}_4.{\mathrm{H}}_2\mathrm{O}$

Assertion is correct and the reason is the correct explanation of assertion.

Assertion is correct and the reason is false.

Assertion is false and the reason is correct.

None of the above

Na

K

Rb

Cs

Li

Na

K

Cs

MgCO₃

CaCO₃

SrCO₃

BaCO₃

Li < Na < K < Rb < Cs

Cs < Rb < K < Na < Li

Li > Na >K > Na > Cs

Cs > Rb > K >Na > Li

They have low density.

They have high ionization enthalpy.

They are highly reactive.

They show photoelectric effect.

Their general oxidation state is +1

They have a smaller size than alkali metals.

They are electronegative in nature.

They are strong oxidizing agents.

Potassium loses electron easily.

Sodium loses electron easily.

Size of sodium is larger than potassium.

Nuclear charge is more on potassium.

Both form solid bicarbonates.

Their oxides are less soluble in water.

Their carbonates are ionic in nature.

Both form peroxides and superoxides.

Large in size.

Do not lose electrons.

Acts as a strongest reducing agent.

Acts as a strongest oxidising agent.

Ammoniated electron form.

Metal appear red in colour.

Metal gain electron.

Metal ammonia complex forms.

Energy released by excited electron falls in visible region.

Energy released by excited electron does not fall in visible region

s-s transition.

Charge transfer.

Lithium carbonate is not stable to heat.

Lithium carbonate is ionic in nature.

Lithium ion is unable to polarise carbonate ion.

Electropositive character of lithium is the highest.

Caustic soda is used in the soap industry

Sodium carbonate is used as a water softener

Sodium chloride is used for removing impurities from water

Quick lime is used in the manufacture of glass and cement