Which of the following is more reliable ?

"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),
\(\Lambda_m = \kappa V\)
Molar conductance for 0.2 M AgCl solution showing resistance of 40 \(\Omega\) in a cell having distance between electrodes as 2 cm and surface area of 4 cm\(^2\) will be:"

Answer the question on the basis of passage given below :
A colloid is a heterogeneous system in which a substance is dispersed (dispersed phase) as fine particles in another substance called dispersion medium.
Their particle size is intermediate between that of pure solutions (less than 1 nm) and suspensions (greater than 1000 nm).
They are known for interesting properties such as enormous surface area, Tyndall effect, Brownian motion etc.
They are widely used in industries and day to day life.
Some prominent uses of colloids are those in smoke precipitators, purification of water, medicines, cleansers etc.
Which of the following statements correctly explains the charge on hydrated ferric oxide sol, prepared by adding \(\text{FeCl}_3\) to hot water?

"In the electrochemical series written in the increasing order of reduction potential
(A) The elements which are placed above the hydrogen in the electrochemical series are stronger oxidizing agents.
(B) The elements which are placed above the hydrogen in the electrochemical series are stronger reducing agents.
(C) The elements with the positive electrode potential values lie below the hydrogen in the electrochemical series.
(D) The activity of both the metals and non-metals in the electrochemical series decreases from top to bottom.
Choose the correct answer from the options given below:"

Arrange the following acids in increasing order of their acidic strengths: \(HCOOH , FCH _2 COOH , NO _2 CH _2 COOH , ClCH _2 COOH\)

Read the following passage given below and answer the question.
Production of electricity by thermal plants is not very efficient method. It is now possible to make cells in which reactants are fed continuously to the electrodes and products are also removed continuously. One of the most successful fuel cells is hydrogen fuel cell.
In Hydrogen fuel cell, which gas is undergoing oxidation?

Among the given statements about electronic conductance, the correct statementsNo Solution are
(A) The electronic conductance depends on the nature and structure of the metal
(B) The electronic conductance depends on temperature (it decreases with increase in temperature)
(C) The composition of the metallic conductor remains unchanged during electronic conductance.
(D) The electronic conduction depends on the number of valence electrons per atom.
Choose the correct answer from the options given below:

\(\int_{\frac{\pi}{6}}^{\frac{\pi}{3}} \frac{d x}{1+\sqrt{\tan x}}\) is equal to:

The compound does not respond to iodoform test is :

If the matrix \(\left[\begin{array}{ccc}0 & 1 & 4 x \\ -1 & 0 & -5 \\ 2 & 5 & y\end{array}\right]\) is skew-symmetric, then :

An electric dipole is kept in an electric field which is increasing in the +x direction.
The dipole moment of the dipole is also along the +x direction.
Which of the following options is correct for the electric dipole?

Resource		Found	Requirement units
	\(I (x kg)\)	\(II (y kg)\)
Calcium (units/kg)	3	2	9
Vitamin (units/kg)	4	1	5
Cost (Rs/kg)	40	60

Formulate the L.P.P. to minimize the cost

Which of the following compound will form a cyclic product on reaction with ethylene glycol?