Read the passage carefully and answer the Questions
The decomposition of \(N_2O_5\ (g)\) is given as
\(N_2O_5(g) \rightarrow 2NO_2(g) + \frac{1}{2}O_2(g)\)
The above reaction is found to be of first order.
The initial concentration of \(N_2O_5\) was \(1.24 \times 10^{-2}\ M\) at \(318\ K\).
The concentration \(N_2O_5\) after \(60\ minutes\) was \(0.20 \times 10^{-2}\ M\).
The rate constant of the reaction at \(318\ K\) is ______________ (\(log\ 6.2 = 0.792\))

Read the passage carefully and answer the questions
The coordination compounds are of great importance. These compounds are widely present in the mineral, plants and animal world and are known to play many important functions in the area of analytical chemistry, metallurgy, biological systems, industry and medicine. For example, coordination compounds find use in many qualitative and quantitative chemical analysis. Some important metal extraction and purification make use of complex formation. Hardness of water can be estimated by stable complex formation of Ca\(^{2+}\) and Mg\(^{2+}\)
Wilkinson catalyst used for hydrogenation of alkenes is a complex of ___________.

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.
Match List I with List II.

\(LISTI\)	\(LISTII\)
A. & \(CH _3 CH _2 CH _2 CHO \longrightarrow CH _3 CH _2 CH _2 COOH\)	I. \(CrO _3- H _2 SO _4\)
B. Cyclohexene → Hexane-1,6-dioic acid	II. \(\frac{ H _3 O ^{+}}{\Delta}\)
C. \(CH _3 CH _2 CH _2 CH _2 OH \rightarrow CH _3 CH _2 CH _2 COOH\)	III. Ammonical \(AgNO _3\)
D. \(CH _3 CONH _2 \rightarrow CH _3 COOH\)	IV.  \(KMnO _4- H _2 SO _4 / \Delta\)

Choose the correct answer from the options given below: 

When electric current is passed through acidified water, 448 mL of hydrogen gas at STP is collected at the cathode in 965 seconds. The current passed in amperes is :

Insulin deficiency in human beings causes diabetes. Excess of which hormone causes an increase in blood pressure?

Answer the question on basis of passage given below :
Alcohols and phenol are formed when a hydrogen atom in a hydrocarbon, aliphatic and aromatic respectively, is replaced by \(\text{-OH}\) group. The substitution of a hydrogen atom in a hydrocarbon by an alkoxy or aryloxy group forms ethers. Alcohols and phenol consist of two part, an alkyl/aryl group and a hydroxyl group. The properties of alcohols and phenols are primarily due to the hydroxyl group. The nature of alkyl and aryl groups simply modify these properties. Alcohol react both as nucleophiles and electrophiles whereas in phenols, the reactions that take place on the aromatic ring are electrophilic subtitution reactions.
Aspirin is an acetylation product of :

A catalyst increases the rate of reaction by:

Observe the figures and answer the question.

The floating cover of bio-gas plant is usually made-up of _________.

The area (in sq. units) of the region enclosed by the curve \(9 x^2+4 y^2=36\) is

Antibody molecule has:

\(\int_{0}^{1} (x^3 + 3x^2)e^x dx =\)

If \(f(x)=3 x^2+10 x-5\), then by using differentials the appropriate value of \(f(2.03)\) is

A capacitor has a reactance of 100 \( \Omega \) at 50 Hz. Its reactance at 125 Hz would be