MCQ
Dative bond is present in
  • A
    $O_3$
  • B
    $NH_3$
  • $BaCl_2$
  • D
    $BI_3$

Answer

Correct option: C.
$BaCl_2$
c

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Calculate the weight of non-volatile solute having molecular weight $40,$ which is dissolved in $57\,g$ octane to reduce its vapour pressure by $20\%$ .......... $g$.
Given below are two statement :

Statement $I$ : Bromination of phenol in solvent with low polarity such as $\mathrm{CHCl}_3$ or $\mathrm{CS}_2$ requires Lewis acid catalyst.

Statement $II$ : The lewis acid catalyst polarises the bromine to generate $\mathrm{Br}^{+}$.

In the light of the above statements, choose the correct answer from the options given below :

The possible mechanism for the reaction

$2NO + Br \to 2NOBr$ is

$NO + Br_2 \rightleftharpoons NOBr_2$ (Fast)

$NOBr_2 + NO \to 2NOBr$ (Slow)

The rate law expression is

Match the following:
Column $I$ Column $II$
$(A)$ $\mathrm{CH}_3-\mathrm{CHBr}-\mathrm{CD}_3$ on treatment with alc. $\mathrm{KOH}$ gives $\mathrm{CH}_2=\mathrm{CH}-\mathrm{CD}_3$ as a major product. $(P)$ $E1$ reaction
$(B)$ $\mathrm{Ph}-\mathrm{CHBr}-\mathrm{CH}_3$ reacts faster than $\mathrm{Ph}-\mathrm{CHBr}-\mathrm{CD}_3$. $(Q)$ $E2$ reaction
$(C)$ $\mathrm{Ph}-\mathrm{CH}_2-\mathrm{CH}_2 \mathrm{Br}$ on treatment with $\mathrm{C}_2 \mathrm{H}_5 \mathrm{OD} / \mathrm{C}_2 \mathrm{H}_5 \mathrm{O}^{-}$ gives $\mathrm{Ph}-\mathrm{CD}=\mathrm{CH}_2$ as the major product. $(R)$ $E1$ cb reaction
$(D)$ $\mathrm{PhCH}_2 \mathrm{CH}_2 \mathrm{Br}$ and $\mathrm{PhCD}_2 \mathrm{CH}_2 \mathrm{Br}$ react with same rate. $(S)$ First order reaction
In acidic medium, $H_2O_2$ changes $Cr_2O_7^{2-}$ to $CrO_5$ which has two $(-O-O-)$ bonds. Oxidation state of $Cr$ in $CrO_5$ is
The $IUPAC$ name of  (figure) is
Which of the following molecules would diffuse through a cell membrane
Total number of hydroxyl groups present in a molecule of the major product $P$ is. . . . . . . .
Which one of the following, with HBr will give a phenol?
Product $(D)$ in above sequence is