Explore topic-wise InterviewSolutions in Current Affairs.

Match the following:



$\begin{array}{cc}ColumnI& ColumnII\\ 1.Hexagonal& \left(i\right)a=b=c\\ 2.Cubic& \left(ii\right)a\ne b\ne c\\ 3.Triclinic& \left(iii\right)a=b\ne c\\ 4.Monoclinic& \left(iv\right)\alpha =\beta =\gamma =90{}^{\circ }\\ 5.Tetragonal& \left(v\right)\alpha =\gamma =90{}^{\circ },\beta \ne 90{}^{\circ }\\ 6.Rhombohedral& \left(vi\right)\alpha \ne \beta \ne \gamma \ne 90{}^{\circ }\\ 7.Orthorhombic& \left(vii\right).\alpha =\beta =\gamma \ne 90{}^{\circ }\\ & \left(viii\right)\alpha =\beta =90{}^{\circ },\gamma =120{}^{\circ }\end{array}$

Explain the Krebs cycle with reaction

Among $A{l}_2{O}_3$, $Si{O}_2$, $P_2{O}_3$ and $S{O}_2$ the correct order of acid strength is:

The ratio of sp³ and sp² hybrid orbitals in 'C' is

What is the major organic product obtained from the following reaction?

The value of

for
formation of Cr₂O₃ is − 540 kJmol⁻¹
and that of Al₂ O₃
is − 827 kJmol⁻¹. Is
the reduction of Cr₂O₃
possible with Al?

Choose the correct order of stability for the following carbocations.

Nylon-6,6 is obtained by the process of:

By how much would the oxidizing power of the $Mn{O}_4^{-}/M{n}^{2+}$ couple change if the $H^{+}$ ions concentration is decreased to a hundredth of its initial value?

In the preparation of alkanes; a concentrated aqueous solution of sodium or potassium salts of saturated carboxylic acid are subjected to

Which of the following is an example of a decomposition reaction?

$C_5{H}_{12}$ has a symmetrical structure with one quaternary carbon. Its IUPAC name is:

Naphthalene, a white solid used to make mothballs, has a vapour pressure of $0.10mmHg$ at ${27}^{o}C$.

$K_p$ (in atm) and $K_c$ for the equilibrium are :

$C_{10}{H}_8\left(s\right)\rightleftharpoons C_{10}{H}_8\left(g\right)$

The conversion of molecules X to Y follows second order kinetics.
If concentration of X is increased to three times how will it affect
the rate of formation of Y?

A compound forms cubic close packed structure. What is the total number of tetrahedral voids in $1.2mol$ of it?

Choose the reactant that would give the product shown below:

Indicate the compound having the highest rate of reaction with $AgN{O}_3$.

The compounds P, Q and S

were separately subjected to nitration using $HN{O}_3/H_{2}S{O}_4$ mixtue. The major product formed in each case, respectively, is:

A solution of $0.1M$ weak base $B$ is titrated with $0.1M$ of a strong acid $\left(HA\right)$. The variation of $pH$ of the solution with the volume of $HA$ added is shown in the figure below.



What is the $p{k}_b$ of the base? The neutralization reaction is given by

$B+HA\to B{H}^{+}+A^{-}$

Heptane and octane form ideal solution. At $373K$, the vapour pressures of the two liquids are $105.2kPa$ and $46.8kPa$ respectively. What will be the vapour pressure (in bar) of a mixture of $25g$ of heptane and $35g$ of octane?

For the reaction $H_2\left(g\right)+I_2\left(g\right)\rightleftharpoons 2HI\left(g\right)$,

If $0.5$ mole $H_2$ is reacted with $0.5$ mole $I_2$ in a ten-litre container at ${444}^{o}C$ and at same temperature value of equilibrium constant $K_c$ is $49$, the ratio for $\left[HI\right]$ and $\left[I_2\right]$ will be:

The number of optically active product(s) obtained from the complete ozonolysis of the given product is:

Hybridisation of Si in Ortho-silicate is

What is the magnetic moment (spin only) and hybridization of central atom in the brown ring complex $\left[Fe\right(H_{2}O{)}_{5}NO]S{O}_4?$

How will you bring
about the following conversions?

(i) Ethanol to
but-1-yne

(ii) Ethane to
bromoethene

(iii) Propene
to 1-nitropropane

(iv) Toluene to
benzyl alcohol

(v) Propene to
propyne

(vi) Ethanol to
ethyl fluoride

(vii)
Bromomethane to propanone

(viii)
But-1-ene to but-2-ene

(ix)
1-Chlorobutane to n-octane

(x) Benzene to
biphenyl.