Explore topic-wise InterviewSolutions in Current Affairs.

What volume of solution will give rise to an osmotic pressure of $0.5atmat{27}^{\circ }C$ if the solution contains 3 moles of solute at the same temperature?

consider the following sequence of reactions. The ketone (A) is?

Is
there any change in the hybridisation of B and N atoms as a result of
the following reaction?

BF₃
+ NH₃
→
F₃B.NH₃

Consider the following reaction sequence and find the structure of the final product.

The given redox reaction



$B{r}_2+O{H}^{-}\to Br{O}_3^{-}+B{r}^{-}+H_{2}O$

is balanced by ion electron method. Choose the correct statement(s) regarding stoichiometric ratios $\frac{n_a}{n_b}$ :

Here $a,b$ represents different species in the reaction.

A carbonyl compound P (from i-iii), which gives positive iodoform test, undergoes with MeMgBr followed by dehydration to give an olefin Q. Ozonolysis of Q leads to a dicarbonyl compound R, which undergoes intramolecular aldol reaction to give predominantly S.



2. Product S is :

The correct order of increasing C-O bond lengths in CO, $C{O}_3^{2-}$ and $C{O}_2$ is:

The
Sun is a hot plasma (ionized matter) with its inner core at a
temperature exceeding 10⁷
K, and its outer surface at a
temperature of about 6000 K. At these high temperatures, no substance
remains in a solid or liquid phase. In what range do you expect the
mass density of the Sun to be, in the range of densities of solids
and liquids or gases? Check if your guess is correct from the
following data: mass of the Sun = 2.0 × 10³⁰
kg, radius of the Sun = 7.0 × 10⁸
m.

The Correct IUPAC name of $H_2\left[PtC{l}_6\right]$ complex.

Benzyl alcohol is obtained from benzaldehyde by [CPMT 1983; MNR 1993]

Question 22

Amongst the following elements whose electronic configuration are given below, the one having the highest ionisation enthaply is

(a)$\left[Ne\right]3s^{2}3p^1$

(b) $\left[Ne\right]3s^{2}3p^3$

(c) $\left[Ne\right]3s^{2}3p^2$

(d) $\left[Ar\right]3d^{10}4s^{2}4p^3$

Solubility of s block halides in water depends upon:

The volume versus temperature graph of two moles of helium gas is shown in figure. The ratio of heat absorbed and the work done by the gas in process $1-2$ is

What will be the radius of third Bohr's orbit of $B{e}^{3+}$ ion, if the radius of second Bohr's orbit of hydrogen atom is $r_2$?

Ratio of moles of Fe(II) oxidized by equal volumes of equimolar $KMn{O}_4$ and $K_{2}C{r}_2{O}_7$ solutions in acidic medium. $K_P$ will be

For cell reaction, $Zn+C{u}^{2+}\to Z{n}^{2+}+Cu,$ cell representation is

How many litres of $O_2$ at STP are needed for the complete combustion of $40g$ of liquid hexane?

Which of the following reactions gives CO as their major product?

A reaction is second order with respect to a reactant. How is the rate of reaction affected if the concentration of the reaction is

Doubled

Reduced to half?

Which compound is a possible product from addition of Br₂ to 1-butene ?

The increasing order of electrical conductivity of the following aqueous solution is:

$0.1M$ formic acid $\left(X\right)$,

$0.1M$ acetic acid $\left(Y\right)$,

$0.1M$ benzoic acid $\left(Z\right)$.