The role of cryolite in the metallurgy of aluminum is:-

Which of the following statements is not correct?

The order of a reaction where half life changes from 150 min to 75 min when the concentration of reactant is changed from 0.4 M to 1.6 M respectively is :

When \(1.5\) g of a non-volatile solute is dissolved in \(30\) g of a solvent, the boiling point of the solvent is raised by \(2\ K\). Calculate the molar mass of the solute, given that \(K_b\) for the solvent is \(1.85\ K\ kg\ mol^{-1}\).

"Answer the question on basis of passage given below:
\(G = \frac{\kappa A}{l}\)=k (both \(A\) and \(l\) are unity in their appropriate units in m or cm)
Molar conductivity of a solution at a given concentration is the conductance of the volume \(V\) of solution containing one mole of electrolyte kept between two electrodes with area of cross section \(A\) and distance of unit length (\(l\)). Therefore,
\(\Lambda_m = \frac{\kappa A}{l}\)
Since \(l = 1\) and \(A = V\) (volume containing 1 mole of electrolyte),
\(\Lambda_m = \kappa V\)
If the length \(l\) in the column of an electrolytic cell is halved and its area of cross-section is tripled, then conductance (\(G\)) would become:"

According to Alexander Zaitsev the most preferred product for dehydrohalogenation of 2-Bromopentane will be :

Which of the following have lowest value of pK, in their aqueous solution?

Which organism was used by T.H. Morgan for his experiments ?

Match List - I with List - II. 

List – I	List – II
(A) SN1 reaction	(I) vic-dibromide
(B) Bromination of alkenes	(II) gem-dibromide
(C) Alkylidene halides	(III) Racemisation
(D) Dehydrohalogenation of haloalkanes	(IV) Saytzeff rule

Choose the correct answer from the options given below :

A magnetic substance has a susceptibility \( - 0.05 \) at 300 K. The magnetic susceptibility at 600 K is :

The elements which may be considered for an ideal inductor as a solenoid,
(A) which is made of a thick wire
(B) which has negligible resistance
(C) which has a sufficiently large inductance
(D) which is made of a thin wire
Choose the correct answer from the options given below:

The particular solution of the differential equation \(e^x \sqrt{1-y^2} d x+\frac{y}{x} d y=0\), given that \(y=1\), when \(x=0\), is:

If \(5 x+y \leq 100, x+y \leq 60, x \geq 0, y \geq 0\). Then one of the corner points of the feasible region is: