Download App

STD 12 -1. Solution and colligative properties — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 -1. Solution and colligative properties4 Marks
MCQ
The mixture which shows positive deviation from Raoult's law is 
  • A
    Chloroethane $+$ Bromoethane
  • ✓
    Ethanol $+$ Acetone
  • C
    Benzene $+$ Toluene
  • D
    Acetone $+$ Chloroform
✓

Answer

Correct option: B.
Ethanol $+$ Acetone
b
Hydrogen bond of ethanol gets weakened by addition of acetone.

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

$N{a^ - }\xleftarrow{x}Na\xrightarrow{{5\,eV}}N{a^ + }$ 

Predict the value of $'X'$ is .............. $\mathrm{eV}$

→
In the extraction of which of the following, complex ion forms
→
The complex ion has two optical isomers. Their correct configurations are :
→
The data for the reaction $A + B \to C$ is
Exp $[A]_0$ $[B]_0$ initial rate
$1$ $0.012$ $0.035$ $0.10$
$2$ $0.024$ $0.035$ $0.80$
$3$ $0.012$ $0.070$ $0.10$
$4$ $0.024$ $0.070$ $0.80$
→
Reduction potential of four elements $P,\,\,Q,\,\,R,\,\,S$ is $ - \,2.90,\, + \,0.34,\, + \,1.20$ and $ - \,0.76.$ Reactivity decreases in the order
→
Consider separate solutions of $0.500\, M\, C_2H_5OH\,(aq),$ $0.100\,M\,Mg_3(PO_4)_2\, (aq), $ $0.250\, M\,KBr\,(aq)$ and $0.125\, M\,Na_3PO_4\,(aq)$ at $25^o C.$ Which statement is true about these solutions, assuming all salts to be strong electrolytes ?
→
A given nitrogen-containing aromatic compound $A$ reacts with $Sn / HCI$, followed by $HNO _2$ to give an unstable compound $B . B$, on treatment with phenol, forms a beautiful coloured compound $C$ with the molecular formula $C _{12} H _{10} N_2 O$. The structure of compound $A$ is:
→
$ng$ of substance $X$ reacts with $mg$ of substance $Y$ to form $pg$ of substance $R$ and $qg$ of substance $S$. This reaction can be represented as, $X + Y \rightarrow  R + S$. The relation which can be established in the amounts of the reactants and the products will be
→
Which is most acidic of the following
→
Which one of the following statements is correct when $SO_2$ is passed through acidified $K_2Cr_2O_7$ solution?
→