For a fixed volume of liquid solvent, the solubility of a gaseous solute depends upon......
(A) Nature of the gas.
(B) Pressure at constant temperature.
(C) Temperature at constant pressure.
(D) Nature of solvent.
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The product in the following reaction is

In the following statements the in correct statement is :

Read the following passage given below and answer the question.
Production of electricity by thermal plants is not very efficient method. It is now possible to make cells in which reactants are fed continuously to the electrodes and products are also removed continuously. One of the most successful fuel cells is hydrogen fuel cell.
Which is not true for the fuel cell?

Answer the question on the basis of passage given below :
A colloid is a heterogeneous system in which a substance is dispersed (dispersed phase) as fine particles in another substance called dispersion medium.
Their particle size is intermediate between that of pure solutions (less than 1 nm) and suspensions (greater than 1000 nm).
They are known for interesting properties such as enormous surface area, Tyndall effect, Brownian motion etc.
They are widely used in industries and day to day life.
Some prominent uses of colloids are those in smoke precipitators, purification of water, medicines, cleansers etc.
Which of the following statements correctly explains the charge on hydrated ferric oxide sol, prepared by adding \(\text{FeCl}_3\) to hot water?

Match List-I with List-II

List-I (IUPAC name)	List-II (Common name)
(A) 2,4,6-Trinitrophenol	(I) Resorcinol
(B) Benzene-1,4-diol	(II) Quinol
(C) Benzene-1,3-diol	(III) o-Cresol
(D) 2-methyl phenol	(IV) Picric caid

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Phenol is brominated in solvent \(\text{CS}_2\) at low temperature. The product formed are :

If \(\sin ^{-1} x+\sin ^{-1} y=\frac{2 \pi}{3}\), then the value of \(\cos ^{-1} x+\cos ^{-1} y\) is :

Which of the following are correct with reference to rDNA technology?
(A) Exo-nuclease removes nucleotides from the ends of DNA
(B) Replication starts at ori
(C) High velocity microparticle of gold, coated with DNA, are used to transfer DNA in a method known as gene gun
(D) Endo-nuclease makes cut at specific positions within DNA
Choose the correct answer from the options given below:

Match List - I with List - II.

List - I	List - II
(A) Citric acid	(I) Saccharomyces cerevisiae
(B) Ethanol	(II) Trichoderma polysporum
(C) Cyclosporin A	(III) Monascus purpureus
(D) Statins	(IV) Clostridium butylicum
	(V) Aspergillus niger

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Match List-I with List-II

List-I (Formula)	List-II (Physical quantity)
(A) \( neAv_d \)	(I) Mobility
(B) \(\frac{v_d}{E}\)	(II) Current
(C) \(\frac{n e^2 \tau}{m}\)	(III) Conductivity
(D) \(\frac{m}{n e^2 \tau}\)	(IV) Resistivity

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If \(f(x)\) and \(g(x)\) are continuous functions and \(f \circ g\) is an identity function such that \(g^{\prime}(b)=5\) and \(g(b)=a\), then \(f(a)\) is :

Answer the question on the basis of passage given below:
Aldehydes are generally more reactive than ketones in nucleophilic addition reactions due to steric and electronic reasons. Sterically, the presence of two relatively large substituents in ketones hinders the approach of nucleophile to carbonyl carbon more than aldehydes having only one such substituent Electronically aldehydes are more reactive than ketones because two alkyl groups reduce the elctrophilicity of the carbonyl more effectively than in former.
4-Hydroxy-4-methylpentan-2-one and 4-methylpent-3-en-2-one are the products obtained from A by aldol
condensation. \(A\) is: