Match List-I with List-II.

List-I	List-II
(A) Element with highest second ionisation enthalpy	(I) Co
(B) Element with highest third ionisation enthalpy	(II) Cr
(C) M\) in \(M(C O)_6\) is	(III) Cu
(D) Element with highest heat of atomisation	(IV) Zn

Choose the correct answer from the options given below:

Read the passage carefully and answer the Questions
Amines are classified as primary \(\left(1^{\circ}\right)\), secondary \(\left(2^{\circ}\right)\) and tertiary \(\left(3^{\circ}\right)\) depending upon the number of hydrogen atoms replaced by alkyl or aryl groups in ammonia molecules. Aliphatic amines are a stronger bases due to \(+I\) effect of an alkyl groups.
Intermolecular hydrogen bonding in primary and secondary amines affects the boiling points of amines. The intermolecular association is more in primary amines than in secondary amines as there are more number of hydrogen atoms available for hydrogen bond formation. Nitro compounds are reduced to amines by passing hydrogen gas in the presence of finely divided nickel, palladium or platinum and also by reduction with metals in an acidic medium. Gabriel synthesis is used for the preparation of primary amines. Primary amines react with nitrous acid to give unstable diazonium-salts which can be used to synthesize a variety of compounds.
Identify the amine possessing least basic strength

\(\text{R-Br} \xrightarrow{\text{Mg, dry Ether}} \text{P} \xrightarrow{\text{EtOH}} \text{Q}\)
What is Q?

Vitamin B12 is a coordination compound of _______

Read the Passage carefully and answer the questions
When a ligand is bound to a metal ion through a single donor atom, it is said to be a unidentate ligand but when it bind through two donor atoms, then it is said to be didentate ligand and when several donor atoms are present in a single ligand, it is said to be a polydentate ligand. When a dior polydentate ligand uses its two or more donor atoms simultaneously to bind a single metal ion, it is said to be a chelate ligand. The number of such ligating groups is called the denticity of the ligand. ligand which has two different donor atoms and either of the two ligetes in the complex is called ambidentate ligands. The number of ligand donor atoms to which the metal is directly bonded, is called coordination number of the metal ion in the complex. Complexes in which a metal is bound to only one kind of donor groups are known as homoleptic and in which a metal is bound to more than one kind of donor groups are known as heteroleptic complexes.
Which among the following is an ambidentate ligand?

An organic compound (A), C9H10O, gives a 2,4-DNP reaction, negative Tollens' test and iodoform test. On drastic oxidation with chromic acid, it forms B, having molecular formulae, C7H6O2. Identify A and B.

Which of the following base is not present in DNA?

Let \(A X=B\) be a system of three linear equations in three variables. Then the system has
(A) a unique solutions if \(|A|=0\)
(B) a unique solutions if \(|A| \neq 0\)
(C) no solutions if \(|A|=0\) and \((\operatorname{adj} A ) B \neq 0\)
(D) infinitely many solutions if \(|A|=0\) and \((\operatorname{adj} A ) B =0\)
Choose the correct answer from the options given below:

Given below are two statements:
Statement I : There is a need to translate the original low frequency base band signal into high radio frequency before transmission
Statement II : To transmit a signal an antenna is required. As frequency increases size of antenna decreases.
In the light of the above statements, choose the most appropriate answer from the options given below.

Match List I with List II

LISTI	LIST II
A. \(\int \sin ^2(2 x+1) d x\)	I. \(\frac{x}{2}+\frac{\sin (2 x+1) \cos (2 x+1)}{4}+C\)
B. \(\int \cos ^2(2 x+1) d x\)	II. \(\frac{\cos 3(2 x+1)}{24}-\frac{3 \cos (2 x+1)}{8}+C\)
C. \(\int \sin ^3(2 x+1) d x\)	III. \(\frac{x}{2}-\frac{\sin (2 x+1) \cos (2 x+1)}{4}+C\)
D. \(\int \cos ^3(2 x+1) d x\)	IV. \(\frac{\sin 3(2 x+1)}{24}+\frac{3 \sin (2 x+1)}{8}+C\)

Choose the correct answer from the options given below:

Name the reagent required to convert cyclohexene into hexane-1, 6-dioic acid.

Pure milk costs Rs. 75 per litre.
A milkman adds water to 28 litres of pure milk and sells the mixture at Rs. 60 per litre.
How many litres of water does he add?

The feasible region corresponding to the linear constraints of a Linear Programming Problem (LPP) is represented by the shaded region in the given figure. Which of the following is not a constraint to the given LPP?