The solute and solvent in "Amalgam of mercury with sodium" are

If we plot graph for first order reaction involving reactant R, then it will be a straight line if plotted for :

Read the passage carefully and answer the Questions
Aldehydes and ketones are important organic compounds prepared mainly by oxidation of alcohols. Primary alcohols give aldehyde and secondary alcohols yield ketones. Aldehydes can also be formed by partial reduction of acid chlorides, reduction of esters or by Gattermann-Koch reaction. Ketones are prepared by Friedel-Craft's acylation, hydration of alkyne and reaction of Grignard's reagent with nitriles. Chemically, aldehydes and ketones are reactive in nature due to the carbonyl group and undergo nucleophilic addition reactions. Aldehydes are more reactive than ketones and can be oxidized to carboxylic acids, while both can be reduced to alcohols or hydrocarbons and exhibit condensation reaction.
When two moles of benzaldehyde are heated with concentrated NaOH solution, the product/s obtained is/are:

The IUPAC name of the coordination compound \(\left[ CoCl _2( en )_2\right]^{+}\)is :

The correct sequence of conductivity of the following materials at 300 K in the increasing order is
(A) Copper
(B) Graphite
(C) Germanium
(D) Silicon
Choose the correct answer from the options given below:

Match List I with List II

list 1	list 2
A. Vitamin A	1. Rickets
B. Vitamin C	II. Xerophthalmia
C. Vitamin B1	III. Scurvy
D. Vitamin D	IV. Beri-Beri

Choose the correct answer from the options given below:

Reaction of benzaldehyde with acetophenone in the presence of methanolic NaOH yields a major stable product as

Differentiation of \(\frac{x^3}{1-x^3}\) with respect to \(x^3\) is equal to:

Rauwolfia vomitoria growing in different Himalayan ranges, is an example of :

The unit for molar conductivity is

If the corner points of Linear Programming Problem having objective function \(\operatorname{Max} z=2 x+y\) are \(O(0,0), A(30,0), B(20,30), C(0,50)\), then the optimal value will be at the point :

What is the correct sequence of increasing reactivity of the following compounds towards nucleophilic addition reaction?
(A) Ethanal
(B) Propanone
(C) Propanal
(D) Butanone
Choose the correct answer from the options given below :

The drift velocity of electrons in a copper wire of length 2 m under the application of a potential difference of 200 V is \( 0.5 \text{ ms}^{-1} \). The mobility of electrons in \( \text{m}^2\text{V}^{-1}\text{s}^{-1} \) is :