The following solutions were prepared by dissolving 1 g of solute in 1 L of the solution. Arrange the following solutions in decreasing order of their molarity
(A) Glucose (molar mass = 180 g mol^-1)
(B) NaOH (molar mass = 40 g mol^-1)
(C) NaCl (molar mass = 58.5 g mol^-1)
(D) KCl (molar mass = 74.5 g mol^-1)
Choose the correct answer from the options given below :

Which one of the following ligands forms a chelate?

Answer the question on the basis of passage given below :
For the transition elements
Sc \(\quad\) Ti \(\quad\) V \(\quad\) Cr \(\quad\) Mn\(\quad\) Fe \(\quad\) Co \(\quad\) Ni \(\quad\) Cu \(\quad\) Zn
Atomic numbers :
21 \(\quad\) 22 \(\quad\) 23 \(\quad\) 24 \(\quad\) 25 \(\quad\) 26 \(\quad\) 27 \(\quad\) 28 \(\quad\) 29 \(\quad\) 30 \(\quad\)
Which transition metal ion \(\text{M}^{2+}\) gives magnetic moment 5.92 BM?

The decomposition of ammonia on platinum surface is a zero order reaction. How much time it will take for \(1 \times 10^{-4}\ mol\ L^{-1}\) of ammonia to reduce into half of its concentration ?
(\(K = 0.5 \times 10^{-4}\ mol\ L^{-1}\ s^{-1}\))

When we consider an inert electrode in a cell; which statement is not suitable for it?
(A) It provides surface either for oxidation or for reduction reaction.
(B) It does not participate in the cell reaction.
(C) It provides surface for redox reaction.
(D) It provides surface for conduction of electrons.
Choose the correct answer from the options given below:

The spin magnetic moment of cobalt in the compound named Mercuric tetrathiocyanato cobaltate (II) is

If the concentration of a reactant is reduced to half, the rate of reaction becomes \(\frac{1}{4}\). What will be the order of reaction?

If A is a square matrix such that \(A^2=A\) and I is the identity matrix of the same order as A, then \((I+A)^2-3 A\) is equal to

Read the Passage carefully and answer the Questions
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, pressure 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 \(=k[A]^x[B]^y\)
Here \(k\) is the rate constant
\(z+y\) gives the overall order of a reaction, whereas \(z\) and \(y\) represent the order with respect to the reactants \(A\) and \(B\), respectively.
The order of a reaction which does not exist is:

Which of the following metal ions does not show color in aqueous medium?

Which of the following compounds have T-shaped structure?
(A) \(XeOF_2\)
(B) \(BrF_5\)
(C) \(IF_7\)
(D) \(ClF_3\)
(E) \(XeO_3\)
Choose the correct answer from the options given below :

DNA recombinant technology involves the use of restriction endonucleases. After having cloned the gene of interest and having optimised the conditions to induce the expression of the target protein, one has to consider producing it on a large scale. The cells harbouring cloned genes of interest may be grown on a small scale in the laboratory. In order to link the alien DNA, the vector needs to have very few, preferably single, recognition sites for the commonly used restriction enzymes. Presence of more than one recognition sites within the vector will generate several fragments, which will complicate the gene cloning. In Biolistics or gene gun method cells are bombarded with high velocity micro particles of gold or tungsten coated with DNA. The ligation of alien DNA is carried out at a restriction site present in one of the two antibiotic resistance genes. For example, you can ligate a foreign DNA at the BamH I site of tetracycline resistance gene in the vector pBR322. Since the DNA is enclosed within the membranes, we have to break the cell open to release DNA along with other macromolecules such as RNA, proteins, polysaccharides and also lipids. The RNA can be removed by treatment with ribonuclease whereas proteins can be removed by treatment with protease. Other molecules can be removed by appropriate treatments and purified DNA ultimately precipitates out after the addition of chilled ethanol.
Which one of the following enzymes works as molecular glue?

The first clinical gene therapy was given in 1990 to a 4-year old girl suffering from: