Explore topic-wise InterviewSolutions in Current Affairs.

Draw
the structures of the following compounds.

(i)
3-Methylbutanal
(ii) p-Nitropropiophenone

(iii)
p-Methylbenzaldehyde
(iv) 4-Methylpent-3-en-2-one

(v)
4-Chloropentan-2-one
(vi) 3-Bromo-4-phenylpentanoic
acid

(vii)
p,p’-Dihydroxybenzophenone
(viii) Hex-2-en-4-ynoic
acid

The total number of electrons present in $5.6\text{L}$ of methane gas at STP is:

25 mL of an aqueous solution of KCl was found to require 20 mL of 1 $MAgN{O}_3$ solution when titrated using a $K_{2}Cr{O}_4$ as indicator. The depression in freezing point of KCl solution with 100% ionization will be:
[$K_t=2^{o}C$.kg $mo{l}^{–1}$ and molarity = molality]

Which one of the following is not a surfactant?

For a dilute solution containing 2.5 g of a non-volatile non-electrolyte in 100 g of water, the elevation in boiling point at 1 atm pressure is $2^{o}C$. Assuming concentration of solute is much lower than the concentration of solvent, the vapour pressure (mm of Hg) of the solution is (take $K_b=0.76Kkg{\text{mol}}^{-1})$

One mole of an unsaturated hydrocarbon on ozonolysis gives one mole each of $C{H}_{3}CHO,HCHO$ and $OHC-CHO$. The hydrocarbon is:

What is the difference
between physisorption and chemisorption?

Which one is a chain growth polymer

Which of the following carbocations is expected to be most stable?

Arrange the following compounds in increasing order of their reactivity in nucleophilic addition reactions.

(i) Ethanal, Propanal, Propanone, Butanone.

(ii) Benzaldehyde, p-Tolualdehyde, p-Nitrobenzaldehyde, Acetophenone.

Hint: Consider steric effect and electronic effect.

Which of the following is not a polyamide?

[AFMC 2000; CBSE PMT 2001; KCET 2001]

Molar conductivity $\left(\Lambda m\right)$ of an aqueous solution of sodium stearate, which behaves as a strong electrolyte, is

recorded at varying concentrations (c) of sodium stearate. Which one of the following plots provides the

correct representation of micelle formation in the solution?

(critical micelle concentration (CMC) is marked with an arrow in the figures)

Why is POP used for setting fractured bones?

Equilibrium constant of $T_{2}O$ (T or ${}_1^{3}H$ is an isotope of ${}_1^{1}H$) and $H_{2}O$ are different at 298 K. At 298 K, pure $T_{2}O$ has pT (like pH) of 7.62. The pT of a solution prepared by adding 10 mL of 0.2 M $TCl$ to 15 mL of 0.25 M $NaOT$ is:

Which of the following pairs of compounds does not represent structural isomerism?

One mole of a monoatomic real gas satisfies the equation $p(V-b)=RT$ where, $b$ is a constant. The correct relationship between interatomic potential $V\left(r\right)$ and interatomic distance $r$ for the gas is given by:

The absolute configuration of

The reactivity of compound Z with different halogens under appropriate conditions is given below

The observed pattern of electrophilic substitution can be explain by

In which of the following molecules, all atoms are coplanar ?

Among these compounds, the order of heats of hydrogenation is:

Tetragonal system has which of the following dimensions?

Identify Z in the following reaction sequence, $C{H}_2=C{H}_2\stackrel{HBr}{\to }x\stackrel{Ag.NaOH}{\to }Y\stackrel{N{a}_{2}C{O}_3/Excess{I}_2}{\to }$