Explore topic-wise InterviewSolutions in Current Affairs.

Find the product of the given reaction?

In which of the following reactions Markovnikov’s rule is not observed?

What is the role of a catalyst in a catalysed reaction

[MP PMT 1996; Pb. PMT 2000;UPSEAT 2001,02]

How many grams of sulphuric acid will be present in 0.25 mol of sulphuric acid?
( atomic mass of S = 32 u and O = 16 u respectively)

In the reaction
$C_2{O}_4^{2-}+Mn{O}_4^{-}+H^{+}⟶M{n}^{2+}+C{O}_2+H_{2}O$ the reductant is

Which of the following is an example of condensation homopolymer?

The compound that reacts with $C{H}_{3}MgBr$ to yield methane as one of the products is

An ionic compound has a unit cell consisting of ‘A’ ions at the corners of a cube and ‘B’ ions on the centres of the faces of the cube. The empirical formula for this compound would be

Hydrolysis of $C{H}_{3}C{H}_{2}N{O}_2$ with 85% $H_{2}S{O}_4$ gives :

If all the atoms along one body diagonal are removed, then the formula of the compound becomes:

On mixing 10 ml of acetone with 40 ml of $CHC{l}_3$, the total volume of solution is?

1‑propanol & 2‑propanol can be best distinguished by:

Which of the following oxides are basic?

Reaction of $C_6{H}_{5}C{H}_{2}Br$ with aqueous sodium hydroxide follows ........

(a) $S_{N}1$ mechanism

(b) $S_{N}2$ mechanism

(c) Any of the above two depending upon the temperature of reaction

(d) Saytzeff rule

In a chemical equilibrium $A+B\rightleftharpoons C+D$, when 1 mole of each reactant are mixed, 0.6 mole each of the product s are formed. The equilibrium constant is:

In basic dyes which of the following group is present?

The state of hybridization of boron and oxygen atoms in boric acid$\left(H_{3}B{O}_3\right)$ are respectively:

The energy of combustion of propane $\left(C_3{H}_8\right)$ gas in terms of given data is:
Bond energy (kJ/mol)
$$\begin{array}{ccccc}{ϵ}_{C-H}& {ϵ}_{O=O}& {ϵ}_{C=O}& {ϵ}_{O-H}& {ϵ}_{C-C}\\ +x_1& +x_2& +x_3& +x_4& +x_5\end{array}$$
Resonance energy of $C{O}_2$ is $-zkJ/mol$ and $△H_{vaporization}\left[H_{2}O\right]isykJ/mol$

The number of d electrons in [Cr(H₂O)₆]³⁺ (At. no. of Cr = 24) is:

In which of the following alkyl halide a hydride shift occur upon addition of water?

The numbers of functional isomers of Pent-1-yne are:

Arrange $C{e}^{3+},L{a}^{3+},P{m}^{3+}$ and $Y{b}^{3+}$ in increasing order of their ionic radii.

Which of the given relationship is incorrect?

Calculate $q$ for the isothermal reversible expansion of one mole of an ideal gas from an initial volume of $12L$ to a final volume of $120L$ at constant temperature of $273K$.

The concentrations of $C{l}^{-}\&Cr{O}_4^{2-}$ in a solution are $0.1M\&{10}^{-4}M$ respectively. If solid $AgN{O}_3$ is gradually
added to this solution, what will be the concentration of $C{l}^{-}$ when $A{g}_{2}Cr{O}_4$ begins to precipitate? $\left[K_{sp}\right(AgCl)={10}^{-10}{M}^2;K_{sp}(A{g}_{2}Cr{O}_4)={10}^{-12}{M}^3]$

The correct order of increasing basicity of the given conjugate bases $(R=C{H}_3)$ is

Amongst the following identify the species with an atom in + 6 oxidation state:

Choose the correct option for the free expansion of an ideal gas under adiabatic conditions from the following:

The chlorobenzene is generally obtained from a corresponding diazonium salt by reacting it with

[MP PMT 2000]

Ethanol when reacted with PCl₅ gives A, POCl₃ and HCl. A reacts with silver nitrite to form B and AgCl . A and B respectively are

In a fcc arrangement of A & B atoms, where A atoms are at the Corners of the unit cell, B atoms at the face centers, two atoms are missing from two corners in each unit cell, then the simplest formula of the

In the given reaction

$(C{H}_3{)}_{2}CO+HCN\to X\stackrel{H_3{O}^{+}}{\to }Y\underset{Heat}{\overset{H_{2}S{O}_4}{\to }}Z$

The compound $Z$ is:

The measurement of the position of the electron is associated with an uncertainty in momentum, which is equal to $2.5\times {10}^{-8}{\text{g cm s}}^{-1}$. The uncertainty in the velocity of the electron is:

(Mass of an electron is $9\times {10}^{-28}\text{g})$

1. Define the term 'amorphous'. Give a few examples of amorphous solids.

0.126 gm of $H_2{C}_2{O}_4.2H_{2}O$ is completely oxidized by ‘y’ ml of 0.01N $KMn{O}_4$ solution in acidic medium. The value of ‘y’ is

Cobalt (III) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at ${25}^{\circ }C$ ?

Why does sharp glass edge become smooth on heating it upto its melting point in a flame? Eplain which property of liquids is responsible for this phenomenon.

What volume of water must be added to 50 mL of a 0.5 M $H_{2}S{O}_4$ to give a solution having a concentration of 0.1 M $H_{2}S{O}_4?$

In the given expression $r=\rho Z_{AB}{e}^{\frac{-Ea}{RT}}$
Which term is called the steric factor: