2.5 g of the following substances are dissolved in 500 mL of water. Arrange the resultant solutions in increasing order of their molarity ;
(A) \(C _6 H _{12} O _6\left(180 g mol ^{-1}\right)\)
(B) \(NH _2 CONH _2\left(60 g mol ^{-1}\right)\)
(C) \(NaCl \left(58.5 g mol ^{-1}\right)\)
(D) \(MgSO _4\left(120 g mol ^{-1}\right)\)
Choose the correct order from the options given below :

Match List-I with List-II

List-I (Reaction)	List-II (Type of reaction)
(A) Hydrolysis of Ethyl Chloride	(I) Substitution reaction
(B) 2-Propanol is treated with Conc. Sulphuric acid	(II) Addition reaction
(C) Reaction of HCN with Acetone	(III) Degradation reaction
(D) Treatment of acetamide with NaOH and Br2	(IV) Elimination reaction

Choose the correct answer from the options given below:

The carbohydrate used as storage molecule in plants is

Which of the following process is responsible for the formation of delta at a place where rivers meet the sea?

Which of the following statements are true ?
A. Noble gases have low M.P. or B.P. due to weak dispersion forces
B. All noble gases have completely filled \(ns^2np^6\) electronic configuration
C. \(XeF_2\) and \(XeF_6\) are colourless crystalline solid
D. \(XeO_3\) has pyramidal geometry
Choose the correct answer from the options given below :

Read the passage carefully and answer the questions
The speed at which a chemical reaction takes place is called the rate of reaction. The rate of reaction depends on various factors like concentration of the reactants, temperature, etc. The relation between the rate of reaction and the concentration of reacting species is represented by the equation r = k[A]^x[B]^y, where x and y are the order of the reaction with respect to the reactants A and B, respectively. The overall order of the reaction is x + y. The rate of reaction can also be increased by the use of a catalyst which provides an alternate pathway of lower activation energy. It increases the rate of forward and backward reaction to an equal extent. It does not alter the Gibbs energy of the reaction.
If the rate of reaction becomes twenty-seven times upon increasing the concentration of reactant by three times, the order of this reaction is

The value of conductivity of some selected materials at 298.15 K is given below. From the value
identify a semiconductor.

Chemisorption has the following traits:
A. High enthalpy of adsorption
B. Reversible
C. Favoured by high temperature
D. Requires low activation enthalpy
Choose the correct answer from the options given below:

If \(C_{i j}\) represents the cofactor of element \(a_{i j}\) of the matrix \(A=\left[\begin{array}{ccc}2 & -1 & 3 \\ 1 & 2 & 0 \\ 4 & 1 & 5\end{array}\right]\), then the value of \(C_{23}+C_{31}-C_{22}\) is

A first order reaction is found to have a rate constant, k = 5.5 × 10^-14 s^-1. The half life of the reaction will be :

The shaded region shown in the figure is given by inequalities:

Which one of the following set of constraints represents the shaded region given below?

If the points (-1,-1,2), (2, m, 5) and (3, 11, 6) are collinear, then m equals