Explore topic-wise InterviewSolutions in Current Affairs.

The density of an ideal gas at $298\text{K}$ and $1.0\text{atm}$ is found to be $1.25{\text{kg m}}^{-3}$. Density of the gas at $1.5\text{atm}$ and at $298\text{K}$ is:

1.24 gm P is present in 2.2 gm of

When diethyl ether is treated with excess of Cl₂ in presence of sunlight, then the product formed is

If $10\text{g}$ of a molecule contains $1.505\times {10}^{22}$ molecules what will be the molar mass of the molecule?

What is the formal charge on the starred oxygen in the carbonate ion? $[O-\stackrel{\underset{||}{O}}{C}-\stackrel{\ast }{O}{]}^{2-}$

The equilibrium constant $k_c$ of the reaction $A_2$ (g) + $B_2$ (g) $\rightleftharpoons$ 2AB (g) is 50. If 1 mol of $A_2$ and 2 mol of $B_2$ are mixed, the amount of AB at equilibrium would be:

Which of the following is the weakest acid?

A compound that gives positive iodoform test is:

What is the number of photons of light with a wavelength of 4000 pm that provide 1 J of energy?

What hybridization is expected on the central atom of each of the following molecules?
(i) $Be{H}_2$
(ii) $C{H}_{2}B{r}_2$
(iii) $P{F}_6^{-}$
(iv) $B{F}_3$

Which of the following structures have $3^{\circ }$ (Tertiary) Carbon atom ?

I, II, III are three isotherms respectively at $T_1,T_2$ and $T_3$. Temperature will be in the order:

Tyndall effect would be observed in a

[CPMT 1973, 79, 90, 91, 94; MP PET 1999;

MP PMT 1973, 89; DPMT 1982, 83; AFMC 1999]

The first row transition metal complexes having tetrahedral geometry are high spin due to:

The bond dissociation energy of H - H, C - C, and C - H bonds respectively are 104.2, 83.1 and 98.8 kcal/ mole. The electronegativity of C is?

Knowing the properties of $H_{2}O$ and $D_{2}O$, do you think that $D_{2}O$ can be used for drinking purposes?

On the basis of quantum numbers, justify that the sixth period of the periodic table should have 32 elements.

The given unbalanced redox reaction
$S_2{O}_3^{2-}+S{b}_2{O}_5+H^{+}\to SbO+H_{2}S{O}_3$
is balanced by oxidation number method. The stoichiometric coefficient of $S{b}_2{O}_5$ and $SbO$ respectively, will be:

Arrange given alcohols in increasing order of their reactivity for dehydration reaction.

The solubility of different sparingly soluble salts are given as under:
$\begin{array}{ccc}S.No.& FormulaType& Solubilityproduct\\ 1.& AB& 4.0\times {10}^{-20}\\ 2.& A_{2}B& 3.2\times {10}^{-11}\\ 3.& A{B}_3& 2.7\times {10}^{-31}\end{array}$
The correct increasing order of solubility is:

What is the electrochemical equivalent of cu in the reaction

Cu⁺² +2e^- --> Cu

Some statements about isomerism are given

(I) n - propyl amine and isopropyl amine are position isomers
(II)n - butyl amine, isobutyl amine are chain isomers
(III)n - propyl amine and tri methyl amine are functional isomers

(IV)di ethyl amine and n - propyl methyl amine are metamers The correct statements are

In ground state, the radius of hydrogen atom is $0.53\mathring{A}$. The radius of $L{i}^{2+}$ ion Z = 3 in the same state is

Highest amount of energy will be required to remove an electron from:
(for the same value of n)

The first ionisation potential of Na is 5.1 eV. The value of electron gain enthalpy of $N{a}^{+}$ will be

Highly pure Hydrogen (~99.9% ) can be obtained from:

The quantum number of four electrons are given below:
I. $n=4,l=2,m_l=-2,m_s=-1/2$
II. $n=3,l=2,m_l=1,m_s=+1/2$
III. $n=4,l=1,m_l=0,m_s=+1/2$
IV. $n=3,l=1,m_l=1,m_s=-1/2$
The correct order of their increasing energies will be:

Minimum work is said to be done when a gas expands

Which of the following pairs is not isomorphous?

A crystalline solid

[Kerala CET (Med.) 2003]

The complex ion havin minimum magnitude of ${\Delta }_0$ (CFSE)is

Consider a first order gas phase decomposition reaction given below

$A\left(g\right)\to B\left(g\right)+C\left(g\right)$ The initial prssure of the system before decomposition of A was $p_i$. After lapse of time 't' total pressure of the system increased by x units and became '$p_t$'. The rate constant k for the reaction is given as ...... .

$\left(a\right)k=\frac{2.303}{t}log\frac{p_i}{p_i-x}\left(b\right)k=\frac{2.303}{t}log\frac{p_i}{2p_i-p_t}\left(c\right)k=\frac{2.303}{t}log\frac{p_i}{2p_i+p_t}\left(d\right)k=\frac{2.303}{t}log\frac{p_i}{p_i-x}$

Which of the following is the least reactive towards nucleophillic addition reaction?

$Ag\left(g\right)+energy\to A{g}^{+}\left(g\right)+$ electron The set of quantum numbers of the electron referred in the above ionization energy

If the equilibrium constant for
$N_2\left(g\right)+O_2\left(g\right)\rightleftharpoons 2NO\left(g\right)$ is $K$, the equilibrium constant for $\frac{1}{2}{N}_2\left(g\right)+\frac{1}{2}{O}_2\left(g\right)\rightleftharpoons NO\left(g\right)$ will be :-

The first ionization potential of Na, Mg, Al & Si are in the order

In the preparation of compounds of Xe, Bartlett had taken $O_2^{+}Pt{F}_6^{-}$ as a base compound, This is because