MCQ
Auto-oxidation of bleaching powder gives
- Aonly calcium chlorate
- ✓only calcium chloride
- Conly calcium hypochlorite
- Dboth $(A)$ and $(B)$
✓
Answer
Correct option: B.
only calcium chloride
b
$Br_2$, formed by adding chlorine water to a solution of $KBr$, further reacts with $Cl_2$ to form reddish yellow or orange red $BrCl$.
$Br_2$, formed by adding chlorine water to a solution of $KBr$, further reacts with $Cl_2$ to form reddish yellow or orange red $BrCl$.
$Br_2 + Cl_2 \to 2BrCl$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Match the column
→| Column $-I$ | Column $-II$ | ||
| $(a)$ | $[Pt(NH_3)_3Cl]Br$ | $(P)$ | Coordination isomerism |
| $(b)$ | $[Cr(NH_3)_5(NCS)]^{+2}$ | $(Q)$ | Ionisation isomerism |
| $(c)$ | $[Co(H_2O)_6]Cl_3$ | $(R)$ | Linkase isomerism |
| $(d)$ | $[PtCl_4] [Pt(NH_3)_4]$ | $(S)$ | Hydrated isomerism |
Which of the following is correct order of acidity?
Which of the following pentoses will be optically active
→$\begin{array}{*{20}{c}}{CHO}\\|\\{HCOH}\\|\\{HOCH}\\|\\{HCOH}\\|\\{C{H_2}OH}\\I\end{array}$ $\begin{array}{*{20}{c}}{CHO}\\|\\{HCOH}\\|\\{HCOH}\\|\\{HOCH}\\|\\{C{H_2}OH}\\{II}\end{array}$ $\begin{array}{*{20}{c}}{CHO}\\|\\{HCOH}\\|\\{HCOH}\\|\\{HCOH}\\|\\{C{H_2}OH}\\{III}\end{array}$
Which of the following pairs of solutions are expected to be isotonic, temperature being the same?
Which of the following polymers are condensation polymers?
$a.$ Bakelite.
$b.$ Teflon.
$c.$ Butyl rubber.
$d.$ Melamine formaldehyde resin.
→$a.$ Bakelite.
$b.$ Teflon.
$c.$ Butyl rubber.
$d.$ Melamine formaldehyde resin.
The reaction $2 NO + Br _2 \rightarrow 2 NOBr$
→takes places through the mechanism given below :
$NO + Br _2 \Leftrightarrow NOBr _2 \text { (fast) }$
$NOBr _2+ NO \rightarrow 2 NOBr \text { (slow) }$
The overall order of the reaction is $.....$.
In the preparation of $\mathrm{HNO}_3,$ we get $NO$ gas by catalytic oxidation of ammonia. The moles of $NO$ produced by the oxidation of two moles of $\mathrm{NH}_3$ will be $......$
→The reaction of an aldehyde with hydroxylamine gives a product which is called
Select the correct $I.U.P.A.C.$ name for $[Pt(NH_3)_4]$ $[PtCl_4]$
→The major products $\mathrm{A}$ and $\mathrm{B}$ formed in the following reaction sequence are :
→