Which of the following statements is(are) correct for amino acids?
(A) Amino acids behave like salts
(B) In aqueous solution they form zwitter ion.
(C) Most naturally occurring amino acids exist in D configuration
(D) Tyrosine is a non-essential amino acid
Choose the correct answer from the options given below:

The most suitable substrates for preparation of following alcohol is

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Kinetic studies not only help us to determine the rate of a chemical reaction but also describe the conditions by which the reaction rates can be altered.
The factors such as concentration, temperature, preasure and catalyst affect the rate of a reaction.
The speed of a reaction or the rate of a reaction can be defined as the change in concentration of a reactant or product in unit time.
Rate \(=k|A|^a[B]^y\)
Here \(k\) is the rate constant
\(x+y\) gives the overall order of a reaction, whereas \(x\) and \(y\) represent the order with respect to the reactants \(A\) and \(B\), respectively.
Table: Initial rate of formation of NO₂

S.No.	Initial [NO]/mol L-1	Initial [O2]/mol L-1	Initial rate of formation of [NO2]/mol L-1s-1
1.	0.30	0.30	0.096
2.	0.60	0.30	0.384
3.	0.30	0.60	0.192
4.	0.60	0.60	0.768

Based on the above observations, the rate of formation of NO₂ can be represented as

For first order decomposition of \(N _2 O _5\) at constant volume, \(p_i\) is initial pressure
and \(p_t\) is pressure at any time \(t\) during the reaction.
Which of the following statement/s is incorrect?
(A) Half life does not depend on initial pressure
(B) Total pressure decreases with time
(C) Rate constant will be the same if initial pressure is doubled
(D) \(k=\frac{2.303}{t} \log \left(\frac{p_t}{p_i}\right)\)
Choose the correct answer from the options given below:

A solution of \(CuSO _4\) is electrolyzed for 1 minute with a current of 1 ampere. Given the atomic mass of Cu as \(63 g mol ^{-1}\), the mass of copper deposited at the cathode is

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 :

The complex having lowest \(\Delta_0\) value among the given complexes is :

If a straight conductor of length 0.5 m is moved with a speed of \( 6 \text{ m s}^{-1} \) perpendicular to direction of a magnetic field of \( 1 \text{ Wb m}^{-2} \), the emf induced is :

The infective stage of malarial parasite, Plasmodium is:

\(\text{T.N.T}\) is chemically known as:

The five month moving averages for the following data

Month (rth)	43	44	45	46	47	48	49	50	51
Actual Demand	105	106	110	110	114	121	130	128	137

is :

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Our immune system plays the major role in preventing diseases when we are exposed to disease-causing agents. Immunity is of two types: (i) Innate immunity and (ii) Acquired immunity. The human immune system consists of lymphoid organs, tissues, cells and soluble molecules like antibodies. The immune system also plays an important role in allergic reactions, auto-immune diseases and organ transplantation. The primary lymphoid organs are bone marrow and thymus. The secondary lymphoid organs are spleen, lymph nodes, tonsils, Peyer's patches of small intestine and appendix. There is lymphoid tissue also located within the lining of the major tracts (respiratory, digestive and urogenital tracts) called mucosa associated lymphoid tissue (MALT). It is important to note that HIV/AIDS is not spread by mere touch or physical contact; it spreads only through body fluids. AIDS has no cure, prevention is the best option. Adolescence is accompanied by several biological and behavioural changes and surveys and statistics show that use of drugs and alcohol has been on the rise especially among the youth. Factors associated with drug and alcohol abuse among adolescents are a child's natural curiosity, stress, the perception among youth that it is 'cool' or progressive to smoke, media exposure and an unstable or unsupportive family structures and peer pressure. It is best to identify the situations that may push an adolescent towards use of drugs or alcohol, and to take remedial measures well in time.
Which one of the following can never be over estimated when it comes to the complete well-being of adolescents?

Based on the data available for the production ( \(y_i\) in thousand tons) of a cloth factory for 7 years (\(x_i\)) using the method of least squares, the straight line trend is given by \(y=a+b x\) with \(\sum y_i=608, \sum x_i=0, \sum x_i y_i=116, \sum x_i^2=28\). Then, the increase in production per year is :