Explore topic-wise InterviewSolutions in .

Which one of the elements has the maximum electron affinity?

Which of the following molecules is least resonance stabilized ?

Which one of the following pairs, in general, do not form an alloy?

Which species among the following has bond angle of ${109.5}^o$?

The oxidation state of oxygen in $K{O}_3$, $N{a}_2{O}_2$ are respectively :

Which of the following is resistant to boiling aqua regia

Which is X, Y and Z respectively ?

Calculate the total number of electrons present in a pure sample of $H_{2}S{O}_4,$ if 5 moles of oxygen are present in the sample.

For the reaction, $N_2\left(g\right)+3H_2\left(g\right)\rightleftharpoons 2N{H}_3\left(g\right)$, equilibrium constant $K_C$ is:

Bakelite is prepared by the reaction between:

Which of the following is true regarding preparation of aldehydes and ketones ?

(i) Both can be prepared by the oxidation of the concerned alcohol with copper at about ${250}^{\circ }C$

(ii) Both can be prepared by the oxidation of the concerned alcohol by oppenauer oxidation.

(iii) Both can be prepared by the oxidation of respective alcohol with acidic dichromate.

In the above compound, $C_2$ is rotated clockwise ${120}^{\circ }$ about $C_2-C_3$ bond. The resulting conformer is:

Rutherford's alpha particle scattering experiment eventually led to the conclusion that

Which of the following will be the least reactive towards nucleophilic substitution

10g of Fe powder was mixed with a $CuS{O}_4$ solution which contained 70g of $CuS{O}_4$. What is the weight of the copper obtained?

[Fe = 55.85g Cu = 63.6g]

The limiting molar conductivities ${\lambda }^{\circ }$ for $NaCl,KBr$ and $KCl$ are $126,152$ and $150Sc{m}^{2}mo{l}^{-1}$respectively. The ${\lambda }^{\circ }$ for $NaBr$ is

Which of the following will show maximum -I effect?

The correct ground state electronic configuration of sodium is:

Which of the following phosphorus allotropes is thermodynamically the most stable?

What will be the n-factor $\left(n_f\right)$ for $F{e}_2{O}_3$ in the following chemical change :

$F{e}_2{O}_3\to FeS{O}_4$

A coordination complex compound of cobalt has the molecular formula containing five ammonia molecules, one nitro group and two chlorine atoms for one cobalt atom. One mole of this compound produces three mole ions in an aqueous solution. On reacting this solution with excess of $AgN{O}_3$ solution, we get two moles of $AgCl$ precipitate. The ionic formula for this complex would be:

The number of atoms in $1\text{mL}$ of ammonia gas at STP is:

A solid has a structure in which W atoms are located at the corners of a cubic lattice, O atoms at the centres of edges and Na atom at the centre of the cube. The formula of the compound is

The reaction of sodium is highly exothermic with H₂O. The rate of reaction is lowered by

The amount of zinc required to produce $1.12\text{mL}$ of $H_2$ at STP on treatment with $dil.HCl$ will be: (Given: Molar mass of $Zn$= $65g/mol$)

The correct order of the spin only magnetic moment of metal ions in the following low spin complexes, $\left[V\right(CN{)}_6{]}^{4-}$ , $\left[Fe\right(CN{)}_6{]}^{4-}$, $\left[Ru\right(N{H}_3{)}_6{]}^{3+}$ and $\left[Cr\right(N{H}_3{)}_6{]}^{2+}$ is:

Which of the graphs shown below does not represent the relationship between incident light and the electron ejected from metal surface?

Find the relation between r and a in the following figure.

if a = x $\ast$ r , type 100x rounded off to 2 decimal places.

How may carbon atoms are there in the simplest bicyclo compound?

The concept of electronegativity is not applicable to an element having which of the following outer shell configurations?

Which of the following gives effervescences of $C{O}_2$ with $NaHC{O}_3$ solution ?

Phosphine $\left(P{H}_3\right)$ decomposes to produce $P_4\left(g\right)$ and $H_2\left(g\right)$. What would be the change in volume when $100\text{mL}$ of $P{H}_3\left(g\right)$ is completely decomposed?

$4P{H}_3\left(g\right)\to P_4\left(g\right)+6H_2\left(g\right)$

In the reaction



The product E is:

Match the elements of given atomic number with their properties.

In a H atom, if 'x' is the radius of the first Bohr orbit, the de Broglie wavelength of an electron in the third Bohr orbit is

Urea $\left(H_{2}NCON{H}_2\right)$ is manufactured by passing $C{O}_2\left(g\right)$ through ammonia solution followed by crystallization. $C{O}_2$ for the above reaction is prepared by combustion of hydrocarbon. If combustion of $236kg$ of a saturated hydrocarbon $\left(C_n{H}_{2n+2}\right)$ produces as much $C{O}_2$ as required for production of $999.6kg$ urea then molecular formula of hydrocarbon is:

Oxiran is

Carbon has zero oxidation number in

The piston shown in the figure is moved downwards such that the vapour volume is decreased by 246.3cc. How many grams of $H_{2}O$ is condensed? (Assume aqueous tension at 27${}^{\circ }$C is 360 mm Hg)

Which of the following IUPAC names are NOT correct?

When the following five anions are arranged in order of decreasing ionic radius, the correct sequence is?

NaCI is
an example of

The Reaction Quotient (Q) for the reaction $N_2\left(g\right)+3H_2\left(g\right)\rightleftharpoons 2N{H}_3\left(g\right)$ is given by $Q=\frac{[N{H}_3{]}^2}{\left[N_2\right][H_2{]}^3}$, the reaction will shift in forward direction if :

For the reaction $N{H}_{4}H{S}_{\left(g\right)}\rightleftharpoons N{H}_{3\left(g\right)}+H_2{S}_{\left(g\right)}$ in a closed flask, the equilibrium pressure is P atm. The standard free energy of the reaction would be :

One litre of saturated solution of $CaC{O}_3$ is evaporated to dryness due to which 7.0 mg of residue is left. The solubility product for $CaC{O}_3$ is: