In the following reactions, products (A) and (B) , respectively, are: NaOH + C l _ 2 → (A) + sideproducts (hotandconc .) Ca (OH) _ 2 + C l _ 2 → (B) + sideproducts (dry)

Correct answer: A. NaClO _ 3 and Ca (OCl) _ 2 Here, NaOH gives NaClO _ 3 on reaction with chlorine gas. Ca ( OH ) _ 2 gives CaOCl _ 2 on reaction with chlorine gas. 6NaOH + 3 Cl _ 2 _ (hotandconc) → NaClO _ 3 _ A + 5NaCl + 3 H _ 2 O 2Ca (OH) _ 2 _ dry + 2 Cl _ 2 → Ca (OCl) _ 2 _ B + CaCl _ 2 + 2 H _ 2 O Ca (OCl) _ 2 is known as bleaching powder.

JEE Main 20207 JanuaryEvening Shift

Exam: JEE Main
Year: 2020
Date: 7 January
Shift: Evening Shift
Subject: Chemistry
Chapter: p Block Elements (Group 15, 16, 17 & 18)

JEE Main 2020 · 7 January · Evening Shift · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

In the following reactions, products (A) and (B) , respectively,...

In the following reactions, products $\left(A\right)$ and $\left(B\right)$ , respectively, are:
$NaOH + C{l}_{2} \to \left(A\right) + sideproducts$
\left(hotandconc .\right) $ $ Ca{\left(OH\right)}_{2} + C{l}_{2} \to \left(B\right) + sideproducts $ \left(dry\right)$

Options

A{NaClO}_{3} $and$ Ca{ $\left(OCl\right)}_{2}$
B{NaClO}_{3} $and$ Ca{ $\left({ClO}_{3}\right)}_{2}$
CNaOCl $and$ Ca{ $\left(OCl\right)}_{2}$
DNaOCl $and$ Ca{ $\left({ClO}_{3}\right)}_{2}$

Correct answer

A. {NaClO}_{3} $and$ Ca{ $\left(OCl\right)}_{2}$

Step-by-step solution

Here,

$NaOH$ gives ${NaClO}_{3}$ on reaction with chlorine gas.

$Ca{\left(\text{ OH }\right)}$ _{2} $gives$ {CaOCl}_{2} $on reaction with chlorine gas.$ \mathop{6NaOH + 3{Cl}_{2}}_{\left(hotandconc\right)} \to \mathop{{NaClO}_{3}}_{A} + 5NaCl + 3{H}_{2}O\mathop{2Ca{\left(OH\right)}_{2}}_{dry} + 2{Cl}_{2} \to \mathop{Ca{\left(OCl\right)}_{2}}_{B} + {CaCl}_{2} + 2{H}_{2}O $$ Ca{\left(OCl\right)}_{2} is known as bleaching powder.

Practice p Block Elements (Group 15, 16, 17 & 18) on Quantrex Academy →

More from p Block Elements (Group 15, 16, 17 & 18)

Correct statement(s) about the compounds X , Y and Z is(are) JEE Advanced 2026 Correct statement(s) about the compounds P , Q and R is(are) JEE Advanced 2026 Find the correct statements related to group 15 hydrides. A. Reducing nature increases… JEE Main 2026 Treatment of a gas ' X ' with a freshly prepared ferrous sulphate solution gives a… JEE Main 2026 Correct statements from the following are: A. Nitrogen in oxidation states from +1 to +4… JEE Main 2026 Given below are two statements: Statement I: The covalency of oxygen is generally two but… JEE Main 2026 Given below are two statements : Statement (I) : Oxidising power of halogens decreases in… JEE Main 2026 Given below are two statements : Statement I : The increasing order of boiling point of… JEE Main 2026 Full p Block Elements (Group 15, 16, 17 & 18) list All JEE Main PYQs