Explore topic-wise InterviewSolutions in Current Affairs.

For a reaction between $A$ and $B$ the order with respect to $A$ is $2$ and the order with respect to $B$ is $3$. The concentrations of both $A$ and $B$ are doubled, the rate will increase by a factor of:

For the reaction,

$C_3{H}_{8\left(g\right)}+5O_{2\left(g\right)}\rightleftharpoons 3C{O}_{2\left(g\right)}+4H_2{O}_{\left(liq\right)}$ at constant temperature, $\Delta H-\Delta E$ is:

Look at the following diagram



The enthalpy change for the reaction $A\to B$ will be:

Three
vessels of equal capacity have gases at the same temperature and
pressure. The first vessel contains neon (monatomic), the second
contains chlorine (diatomic), and the third contains uranium
hexafluoride (polyatomic). Do the vessels contain equal number of
respective molecules? Is the root mean square speed of molecules the
same in the three cases? If not, in which case is v_rms
the largest?

The relative lowering of the vapour pressure is equal to the ratio between the number of:

List-I contains reactions and List-II contains the reagents to effect the conversion.





Which of the following option is correct regarding List-I and List-II?

Which aqueous solution behaves as a buffer?

What would be osmotic pressure of 0.05 N sucrose solution at 5 degree C ? Find out the concentration of glucose solution which is isotonic with this sucrose solution.

Define the term
polymerisation.

Which of the following is the strongest oxidising agent

Which of the following methods are employed in the extraction of tin from cassiterite?

Which of the following reactions is possible in the given conditions?

Glucose or sucrose are
soluble in water but cyclohexane or benzene (simple six membered ring
compounds) are insoluble in water. Explain.

Arrange the orbitals in the increasing order of their energy $3p_x,2s,4d_{xy},3s,4p_z,3p_y,4s$

A polythene piece rubbed with wool is found to
have a negative charge of 3 × 10⁻⁷
C.

(a) Estimate
the number of electrons transferred (from which to which?)

(b) Is
there a transfer of mass from wool to polythene?

The $\left[H^{+}\right]$ of the resulting solution that is 0.01 M in acetic acid $(K_a=1.8\times {10}^{-5}M)$ and 0.01 M in benzoic acid. $(K_a=6.3\times {10}^{-5}M)$ will be:

What is a method to indicate reactants and products of a chemical reaction using chemical formulae?

Which one of the following electrolytes has the same value of van‘t Hoff‘s factor as $A{l}_2(S{O}_4{)}_3$ (if all are 100% ionised)

Nicotinic acid (Ka = 1.4 x ${10}^{-5}$) is represented by the formula HNic. For a solution which contains 0.10 mol of nicotinic acid per 2.0 litre of solution, the percent dissociation is:

An aqueous solution of carbonic acid ($H_{2}C{O}_3$) contains

Observe this compound:



Starting from benzylbromide, which sequence helps synthesize the given (above) compound ?



1: Reaction with $(Ph{)}_{3}P:$

2: Reaction with a super strong base

3: Reaction with cylohexanone

The correct set of quantum numbers ($nlm$) for the unpaired $e^{-}$ of chlorine is:

The length of a side of a unit cell of cesium chloride as determined by X ray diffraction pattern is 412.1 pm. What is the density of caesium chloride (in g/cc)? Caesium chloride crystallizes as a body centered cubic lattice. (Atomic wt. of Cs = 133). ___