Arrange the following complexes in increasing order of conductivity of their solution:
(A) \(\left[ Co \left( NH _3\right)_3 Cl _3\right]\)
(B) \(\left[ Co \left( NH _3\right)_4 Cl _2\right] Cl\)
(C) \(\left[ Co \left( NH _3\right)_6\right] Cl _3\)
(D) \(\left[ Co \left( NH _3\right)_5 Cl \right] Cl _2\)
Choose the correct answer from the options given below:

If limiting molar conductance of \(NaCl , K _3 PO _4\) and KCl are \(110.2,98.8\) and \(134.6 \Omega^{-1} cm^2 mol^{-1}\) respectively, the limiting molar conductance of \(Na _3 PO _4\) will be: \(\left(\Omega^{-1} cm^2 mol^{-1}\right)\)

Read the passage carefully and answer the Questions
The term vitamin was coined from the word vital +amine since the earlier identified compounds had amino groups.
Later work showed that most of them didn't contain amino groups, so the letter "e" was dropped and ther term vitamin is used these days.
Vitamins are classified into two groups depending upon their solubility in water or fat. Fat soluble vitamins are soluble in fat and oils but insoluble in water. They are stored in liver and adipose (fat storing) tissues. Water-soluble vitamins are soluble in water. They must be supplied regularly in the diet as they are readily excreated in urine.
Deficiency of which vitamin causes scurvy?

Which of the following properties are related to the complex \(\left[ Fe \left( H _2 O \right)_6\right]^{3+}\) ?
(A) Paramagnetic
(B) Number of unpaired electrons are five
(C) \(d ^2 sp ^3\) hybridisation
(D) \(H _2 O\) is a strong field ligand
Choose the correct answer from the options given below :

Read the passage carefully and answer the questions
The carbonyl group of aldehydes and ketones is highly polar. The positively charged carbon is readily attacked by electron-rich nucleophile and the negatively charged oxygen atom is attacked by an electro-deficient electrophile. Aldehydes and ketones undergo nucleophilic addition reactions in the presence of acid or a base. The mechanism involves attack of a nucleophile on the electron deficient carbonyl carbon to form a tetrahedral intermediate. A new bond is formed between the carbon and oxygen. Protonation of the anion furnished by the reaction medium yields a neutral addition product. The addition product is same whether the reaction is catalyzed by acid or a base. For example in the presence of base aldehydes and ketones react with hydrogen cyanide to form cyanohydrin.
The source of nucleophile in the base catalyzed cyanohydrin formation is:

Arrange the following compounds in increasing order of their solubility in water :
(A) n-butanol
(B) Butan-1-amine
(C) Methanamine
(D) Aniline

Zr and Hf (transition metals) occur together in nature and are difficult to separate. This can be attributed to

Two numbers are selected without replacement at random, one at a time from the first six positive integers. Let x denotes the larger of the two numbers. Match List-I with List-II

List-I	List-II
(A) \(P(x=2)\)	(I) \(\frac{4}{15}\)
(B) \(P(x=3)\)	(II) \(\frac{1}{15}\)
(C) \(P(x=4)\)	(III) \(\frac{2}{15}\)
(D) \(P(x=5)\)	(IV) \(\frac{1}{5}\)

Choose the correct answer from the options given below:

Arrange the given steps for sewage treatment plant in correct sequence?
(A) Formation of flocs
(B) Pumping of sludge into anaerobic sludge digester
(C) Filtration and sedimentation
(D) Reduction in BOD by biological treatment
Choose the correct answer from the options given below:

Haloalkanes can be represented by the formula

The conversions which are represented correctly are
(A)

(B)

(C)

(D)

Choose the correct answer from the options given below:

Which one of the following statements explains autogamy?

To convert a galvanometer into an ammeter