Explore topic-wise InterviewSolutions in Current Affairs.

Which of the following would yield pentan-2-ol?

The major product of the following reaction is:

$C{H}_{3}C\equiv CH\underset{\left(ii\right)DI}{\overset{\left(i\right)DCl\left(1equiv\right)}{\to }}$

Which
of the following reactions will get affected by increasing the
pressure?

Also,
mention whether change will cause the reaction to go into forward or
backward direction.

(i)

(ii)

(iii)

(iv)

(v)

(vi)

Ephedrine is a secondary amine. It is widely used in cold and allergy conditions in the form of its hydrochloride but not as such because

The $V-T$ graph of an ideal gas is shown below. The process $A\text{to}C$ represents:

If an alpha particle, a proton and an electron are moving with the same momentum, then their respective de-Broglie wavelengths ${\lambda }_{\alpha },{\lambda }_p,\text{and}{\lambda }_e$ will be related as,

Identify the chiral molecule(s).

Calcium lactate $Ca(Lac{)}_2$ is salt of weak organic acid. A saturated solution of $Ca(Lac{)}_2$ contains 0.13 mole of this salt in 0.5 litre solution. The pOH of this solution is 5.60. Assuming a complete dissociation of salt, calculate $K_a$ lactic acid

$H_{2}S$ acts only as a reducing agent while $S{O}_2$ can act both as a reducing and oxidizing agent because

Hydraulic mortar is prepared by heating a mixture of

The variation of $\left(\frac{x}{m}\right)$ vs $P$ is plotted for a gas at different temperatures as shown above.

The correct order of temperature is :





Here,

$\left(\frac{x}{m}\right)$ denotes the Amount of gas adsorbed per unit mass of adsorbent

$P$ is the pressure of the gas.

In the given reaction



$C{H}_3-\stackrel{O}{\stackrel{||}{C}}-O-\underset{C{H}_3}{\underset{|}{\stackrel{C{H}_3}{\stackrel{|}{C}}}}-C{H}_3\stackrel{Na/C_2{H}_{5}OH}{\to }\left(X\right)+\left(Y\right)$



$\left[X\right]and\left[Y\right]$ respectively be:

$\left(a\right)C{H}_3-C{H}_2-OHandC{H}_3-\underset{C{H}_3}{\underset{|}{\stackrel{C{H}_3}{\stackrel{|}{C}}}}-OH$

$\left(b\right)C{H}_3-C{H}_2-OHandC{H}_3-\underset{C{H}_3}{\underset{|}{C}}=C{H}_2$

$\left(c\right)C{H}_2=C{H}_{2}andC{H}_3-\underset{C{H}_3}{\underset{|}{\stackrel{C{H}_3}{\stackrel{|}{C}}}}-OH$

(d) all the above

which of following unit cell has maximum number of atoms? 1.bcc 2.hcp 3.fcc 4.simple cubic

Show how
would you synthesise the following alcohols from appropriate alkenes?

(i)

(ii)

(iii)

(iv)

Which will make basic buffer solution?

Identify the lewis base among the following:

Which of the following species can act as the strongest base?
(a) ${}^{\Theta }OH$
(b) ${}^{\Theta }OR$
(c) ${}^{\Theta }O{C}_6{H}_5$
(d)

Discuss
the various reactions that occur in the Solvay process.

Match the types of packing given in Column I with the items given in Column II.

$\begin{array}{cc}ColumnI& ColumnII\\ A.Squareclosepackingintwo& 1.Triangularvoids\\ dimensions& \\ B.Hexagonalclosepackingintwo& 2.Patternofspheresisrepeated\\ dimensions& ineveryfourthlayer\\ C.Hexagonalclosepackingin& 3.Coordinationnumber=4\\ threedimensions& \\ D.Cubicclosepackinginthree& 4.Patternofsphereisrepeatedin\\ dimensions& alternatelayers\end{array}$

Refer to the periodic table given in your book and now answer the following questions:

(a) Select the possible non metals that can show disproportionation reaction.

(b) Select three metals that can show disproportionation reaction.