Match List I and List II.

List-I	List-II
A. Oxidation state of Mn in MnO2 is	I. +2
B. Most stable oxidation state of Mn is	II. +3
C. Most stable oxidation state of Mn in MnO4- is	III. +4
D. Characteristic oxidation state of lanthanoids	IV. +7

Match List-l with List-II

List-l (Compound/Elements)	List-II (Uses)
(A) Magnesium based alloy is constituent of	(I) Bullets
(B) Lanthanoid oxide	(II) Petroleum cracking
(C) Mixed oxides of Lanthanoids are employed in	(III) Television screen
(D) Misch metal	(IV) Lanthanoid metal and iron

Choose the correct answer from the options given below :

Which among the following is not a broad spectrum antibiotic?

Arrange the following in increasing order of their basic strength
(I) \(C_6H_5NH_2\)
(II) \(C_2H_5NH_2\)
(III) \(NH_3\)

Identify the hormone from the following

Azeotropes are binary mixtures having

Aspartame is most successful artificial sweetener but is only limited to cold food and cold drinks because:

Arrange the following ligands in the increasing order of their field strength:
(A) en
(B) edta \({ }^{4-}\)
(C) \(S ^{2-}\)
(D) \(OH ^{-}\)
Choose the correct answer from the options given below:

The co-ordinates of the point at which the line \(\frac{x-3}{3}=\frac{y+1}{2}=\frac{z-4}{-2}\) crosses \(x y\) plane, are

With reference to the elimination reaction of alkyl halides, the correct statements are;
(A) Zaitsev rule predicts the major product in dehydrohalogenation reaction.
(B) Grignard's reagent is prepared under perfectly anhydrous conditions.
(C) Alkyl halides on reaction with aqueous KOH forms an eliminated product but with alcoholic KOH forms a substituted product.
(D) Alkyl halides on reaction with aqueous KOH forms a substituted product but with alcoholic KOH forms an eliminated product.
Choose the correct answer from the options given below:

The second trophic level in an aquatic ecosystem is:

Read the passage carefully and answer the questions
The speed at which a chemical reaction takes place is called the rate of reaction. The rate of reaction depends on various factors like concentration of the reactants, temperature, etc. The relation between the rate of reaction and the concentration of reacting species is represented by the equation r = k[A]^x[B]^y, where x and y are the order of the reaction with respect to the reactants A and B, respectively. The overall order of the reaction is x + y. The rate of reaction can also be increased by the use of a catalyst which provides an alternate pathway of lower activation energy. It increases the rate of forward and backward reaction to an equal extent. It does not alter the Gibbs energy of the reaction.
If the rate of reaction becomes twenty-seven times upon increasing the concentration of reactant by three times, the order of this reaction is

The rate of change of volume of a sphere with respect to its surface area, when radius is 4 cm, is equal to