Select the correct relation of half life for a zero order reaction.

Total number of isomers for the complex \([\text{FeCl}_2 (\text{C}_2\text{O}_4)_2]^{4-}\) is:

Read the passage carefully and answer the Questions
Werner in 1898, propounded his theory of coordination compounds. In coordination compounds metals show two types of linkages (valences)-primary and secondary. The primary valences are normally ionisable and are satisfied by negative ions. The secondary valences are non-ionisable. These are satisfied by neutral molecules or negative ions. The secondary valence is equal to the coordination number and is fixed for a metal. The ions or group bound by the secondary linkages to the metal have characteristic spatial arrangements corresponding to the different coordination numbers. Both double salts as well as complexes are formed by the combination of two or more stable compounds in stoichiometric ratio. However, they differ in the fact that double salts such as carnallite, Mohr's salt, potash alum etc. dissociate into simple ions completely when dissolved in water. But complex ions do not dissociate completely into simple ions.
Identify the correct formula of Mohr's salt and potash alum, respectively.

A solution contains \(5 0 ~ g\) of a non-electrolytic solute per \(1 0 0 g\) of water at \(2 5 ^{ \circ } C\). The vapor pressure of water is \(2 3 . 5 m m H g\) at this temperature. The molar mass of the solute is \(2 5 0 ~ g ~ m o l ^{-1}\). The vapor pressure of the solution at \(2 5 ^{ \circ } C\) will be

\(C_6H_5NO_2 \xrightarrow{(1) Fe/HCl \ (2) HNO_2 \ (3) H_2O}\) A Product 'A' is:

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.
Which of the following amines when treated with chloroform and KOH give foul smelling substance. A is:
A. a primary amine
B. secondary amine
C. tertiary amine
D. aniline

The suitable reagents used for the following conversion is
\(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{CH}_3 \longrightarrow \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{Cl}+\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CHClCH}_3\)

The ratio of magnetic fields at the centre of a current carrying a circular loop of radius 16 cm and at a point on its axis at a distance r from its centre is 125 : 64. The value of r is

If \(m\) and \(n\) are respectively the order and degree of the differential equation :
\(\left(\frac{d^2 y}{d x^2}\right)^5+6 \frac{\left(\frac{d^2 y}{d x^2}\right)^3}{\frac{d^3 y}{d x^3}}+\frac{d^3 y}{d x^3}=x^2+5\), then \(:\)

Match List-I with List-II 

List-I	List-II
(A) \(\Lambda _{ m }\) of \(K C l\) increases on dilution	\(I\).  is a linear. Graph
(B) \(\Lambda_m\) of \(CH _3 COOH\) increases on dilution	\(II\) is a non-linear graph
(C) \(\Lambda_m\) of \(K C l\) versus (molarity) \(^{1 / 2}\)	\(III\) due to increased degree of ionisation
(D) \(\Lambda_m\) of \(CH _3 COOH\) versus (molarity) \(^{1 / 2}\)	\(IV\) due to weakening of interionic attractions

Choose the correct answer from the options given below:

If \(A\) is a square matrix of order 3 and \(|A|=4\), then the value of \(\left|2 A^T\right|\) is

The integrating factor of differential equation \(\frac{d y}{d x}+y \tan x=\sec x\) is:

Which one is not the example of an invasive alien species?