How many gm of bromine will react with 21 , gm C_3 H_6 - Vidyadip

MCQ

How many gm of bromine will react with $21\, gm$ ${C_3}{H_6}$

✓
$80$
B
$160$
C
$240$
D
$320$

✓

Answer

Correct option: A.

$80$

a
(a) $\mathop {\mathop {\mathop {C{H_3} - CH}\limits_{{\rm{Propane}}} }\limits_{{\rm{1 \,mole}}} }\limits_{{\rm{42 }}\,gms} = \,\,C{H_2}\,\, + \mathop {B{r_2}}\limits_{\mathop {1\,{\rm{mole}}}\limits_{42\,{\rm{ }}gms} } \to C{H_3} - \mathop {\mathop {\mathop {C{H_2}}\limits_{|\,\,\,\,\,\,\,\,} }\limits_{Br\,\,\,\,} - \mathop {\mathop {C{H_2}}\limits_{|\,\,\,\,\,\,\,\,} }\limits_{Br\,\,\,\,} }\limits_{{\rm{1, 2 - dibromo propane}}} $

$42\, gm$ of propene reacts with $160\, gms$ of bromine.

$\therefore $ $21\,gms$ of propene $\frac{{160}}{{42}} \times \,21 = 80\,gms$.

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

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

If compound A reacts with $B$ following first order kinetics with rate constant $2.011 \times 10^{-3} s ^{-1}$. The time taken by $A$ (in seconds) to reduce from $7\,g$ to $2\,g$ will be $.........$ (Nearest Integer)

$[\log 5=0.698, \log 7=0.845, \log 2=0.301]$

Thiophene and benzene are separated by

At higher altitude, boiling point of water is $95\,^oC$ . The amount of $NaCl$ added to $1\,\,kg$ water $(K_b = 0.52\,\,Km^{-1})$ in order to raise the boiling point of solution to $100\,^oC$ (assume $90\%$ ionisation of $NaCl$ ) .......... $g$.

The ratio of equivalent weights of $C_2H_5OH$ in the following reactions is

$(i) C_2H_5OH \longrightarrow CH_3CHO$

$(ii) C_2H_5OH \longrightarrow C_2H_5ONa$

In the reaction sequence :

$CH_2OH-CHOH-CH_2OH$ $\xrightarrow{{KHS{O_4}/\Delta }}(X)\mathop {\xrightarrow{{{{({C_2}{H_5}O)}_3}Al}}}\limits_\Delta (Y)$

$(Y)$ will be:

Bessemer converter is used in the manufacture of

But $-2-$ ene on reaction with alkaline $KMnO_4$ at elevated temperature followed by acidification will give

Which one of the following species doesn't have a magnetic moment of $1.73\, \mathrm{BM}$. (spin only value)?

Lucas test is used to distinguish between

Which of the following is non-conducting ?