Explore topic-wise InterviewSolutions in Current Affairs.

Which of the following set does not contain similar ligands?

$\text{The normality of}0.1MB(OH{)}_3$ is

The enthalpy of formation of a compound is

In fluorite structure (CaF₂)

A $300g$, $30\%$ (w/w) NaOH solution is mixed with $500g$ $40\%$ (w/w) $NaOH$ solution. What is $\%$ (w/v) $NaOH$, If density of final solution is $2g/ml$.

For which of the following sparingly soluble salt, the solubility $\left(S\right)$ and solubility product $\left(K_{sp}\right)$ are related by the expression:

$S={\left[\frac{K_{sp}}{4}\right]}^{\frac{1}{3}}$

Which of the following statement is correct?
(a) The presence of reacting species in a covered beaker is an example of open system.
(b) There is an exchange of energy as well as matter between the system and the surroundings in a closed system.
(c) The presence of reactants in a closed vessel made up of copper is an example of a closed system.
(d) The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.

Which has maximum dipole moment?

The potential energy of a particle of mass $m$ is given by,



$U\left(x\right)=\{\begin{array}{cc}{E}_0;& 0\le x\le 1\\ 0;& x>1\end{array}$



${\lambda }_1$ and ${\lambda }_2$ are the de-Broglie wavelengths of the particle, when $0\le x\le 1$ and $x>1$ respectively. If the total energy of particle is $2E_0$, then ratio $\frac{{\lambda }_1}{{\lambda }_2}$ will be

The ammonia evolved from 2g of a compound in Kjeldahl's estimation of nitrogen neutralizes 10 mL of 2 M $H_{2}S{O}_4$ solution. The weight percentage of nitrogen in the compound is

An element has successive ionization enthalpy as 940, 2080, 3090, 4140, 7030, 7870, 16000 and 19,500 KJ/mole. To which group of the periodic table does the element belong to?

For a reaction $A+B\leftrightharpoons 2C$, 2 moles of $A$ and $3$ moles of $B$ are allowed to react. If equilibrium constant is $4$ at $400{}^{\circ }C$, then the mole of ${}^{\prime }{C}^{\prime }$ at equilibrium is:

Which of the following compounds is an amino acid ?

If $\alpha$ is the degree of dissociation of $N{a}_{2}S{O}_4$ the van't Hoff''s factor $\left(i\right)$ used for calculating the molecular mass is

Which has maximum number of atoms ? (a) 2 mole of sulphur molecule. (b) 6 mole of Helium (c) 5•5 mole of sulphur dioxide. (d) 4•48 litre of carbon dioxide at STP

On adding AgNO₃ solution into KI
solution, a negatively charged colloidal sol is obtained when they are in :

Arrange
the following compounds in increasing order of their property as
indicated:

(i) Acetaldehyde,
Acetone, Di-tert-butyl
ketone, Methyl tert-butyl
ketone (reactivity towards HCN)

(ii) CH₃CH₂CH(Br)COOH,
CH₃CH(Br)CH₂COOH,
(CH₃)₂CHCOOH,
CH₃CH₂CH₂COOH
(acid strength)

(iii) Benzoic
acid, 4-Nitrobenzoic acid, 3,4-Dinitrobenzoic acid, 4-Methoxybenzoic
acid (acid strength)

The first step in the manufacture of Nitric acid is the catalytic oxidation of Ammonia. What is the name of the catalyst?

Number of chain isomers of $C_6{H}_{14}$ are:

The hybridization and structure of the intermediate formed by the homolytic fission of C - C bond in ethane is

How many mole of electrons are involved in the reduction of one mole of $Mn{O}_4^{-}$ ion in alkaline medium to $Mn{O}_4^{-2}$ ?

In the circuit shown in the figure, the input voltage $V_1$ is $20\text{V},V_{BE}=0\text{and}{V}_{CE}=0$. The values of $I_B,I_C$ and $\beta$ are given by