Select the correct formula for the coordination compound "Dichloridobis(ethane-1,2-diamine)cobalt(III) chloride"

Answer the question on basis of passage given below :
Lyophobic sols like those of metals (Au, Ag, etc) are unstable and are easily precipitated by addition of electrolytes. However, it is observed that the addition of certain lyophilic colloids like gums, soaps, gelatine, etc. to lyophobic colloids (like a metal sol) render lyophobic colloids difficult to coagulate by the addition of electrolytes. The process is known as 'protection' and the lyophilic colloids are termed as Protective colloids. It is believed that the protective action of the lyophilic colloids is due to the covering up of the particles of the lyophobic colloid by those of the lyophilic colloid.
Evidently, smaller the gold number of a protective colloid, the greater is its protective action. In which of the following sols, the colloidal particles will move towards the cathode during electrophoresis?

Which of the following combinations are correct?

Enzyme	Final product formed
A. Maltase	Glucose
B. Pepsin	Ammonia and \(CO _2\)
C. Urease	Amino acid
D. Zymase	Ethanol and \(CO _2\)
E. Diastase	Glucose

Choose the correct answer from the options given below :

Which of the following will not respond to Fehling's Test?
(A) Benzaldehyde
(B) Acetone
(C) Acetaldehyde
(D) Acetophenone
Choose the correct answer from the options given below:

Answer the question on the basis of passage given below :
There are three kinds of amines which are primary, secondary and tertiary amines. These amines may have alkyl group or aryl group or both alkyl and aryl groups. These amines can be distinguished from one another by various chemical tests.
An amine A on treatment with \(\text{NaNO}_2\) and \(\text{HCl}\) at 273-277 K, followed by treatment with ethyl alcohol, gives a compound B with empirical formula CH and molecular mass 78.
A is :

Match List-l with List-II

List-I(Compound)	List-II(Application)
(A) Methanol	(I) Used in wine making
(B) Ethanol	(II) Wood Spirit
(C) Diethyl ether	(III) Carbolic acid
(D) Phenol	(IV) Anaesthetic

Choose the correct answer from the options given below:

For strong electrolytes, \(\Lambda_m\) increases with dilution and is represented by the equation \(\Lambda_m=\Lambda_m^0-A c^{1 / 2}\). Here, the
(A) Nature of solvent.
(B) Temperature.
(C) Charges on cation and anions produced.
(D) Type of electrolyte.
Choose the correct answer from the options given below :

The number of all possible matrices of order \(3 \times 4\) with each entry 1, 2 or 3 are:

The integral \(\int \frac{d x}{x^2\left(x^4+1\right)^{\frac{3}{4}}}\) equals __________ .

Which one of the followings does not favour decomposition?

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:

When 1 mol of CrCl\(_3\) \(\cdot\) 6H\(_2\)\(O\) is treated with excess AgNO\(_3\), 3 mol of AgCl are obtained.
The conductivity of the solution will correspond to:

Reaction of phenol with chloroform in the presence of sodium hydroxide gives salicylaldehyde. The reaction is known as