List of top Questions asked in MHT CET

IN a chemical reaction Aniline is treated with \(\text{NaNO}_{2}\) and HCl to form a compound X. When X is further hydrolyzed by supplying heat it forms compound Z. Identify Z in this reaction.

Which of the following is least alkaline ?

Which of the following compounds is converted to sulfanilic acid by sulfonation?

Base catalyzed aldol condensation occurs with

Lanthanoide series (15 elements) starts from which of the following element?

What is coordination number of central metal ion in cisplatin ?

Identify best method for preparation of Alkyl fluoride from following

Chlorobenzene reacts with Mg in dry ether to give a compound A, which further reacts with ethanol to give B. Identify B.

The IUPAC name of \([\text{CoCl(NH}_{3})_{5}]\text{Cl}_{2}\) is:

Identify inner transition element from following.

For the reaction
\(\text{C}_{2}\text{H}_{5}\text{Br}_{(l)}\rightarrow \text{C}_{2}\text{H}_{4(g)}+\text{HBr}\), \(r=K(\text{C}_{2}\text{H}_{5}\text{Br})\)
What is order and molecularity of the reaction respectively ?

For a first order reaction, (A) \(\rightarrow\) Products, the concentration of A changes from \(0.1\) M to \(0.025\) M in \(40\) minutes. The rate of reaction when the concentration of A is \(0.01\) M is

Which of the following is existing oxoacid of fluorine?

Which from following gases when absorbed by concentrated sulphuric acid forms oleum ?

The decomposition of \(\text{N}_{2}\text{O}_{5(g)}\) occurs as: \(2\ \text{N}_{2}\text{O}_{5(g)}\rightarrow 4\ \text{NO}_{2(g)}+\text{O}_{2(g)}\).
If initial concentration of \(\text{N}_{2}\text{O}_{5(g)}\) is \(1.63\times 10^{-2}\ \text{mol L}^{-1}\) and after \(400\) seconds it is \(1.36\times 10^{-2}\ \text{mol L}^{-1}\), calculate the rate of reaction.

Identify a phenomenon from the following that the oxygen gas molecules accumulate on the surface of tungsten by means of chemical bonds.

Find the mass of Zn metal deposited at the cathode during the passage of \(10\) amperes current through its salt solution for \(10\) minutes. [ Molar mass of Zn \(=65.4\) g \(\text{mol}^{-1}\) & For the reaction of Zn, mole ratio \(=1/2\) ]

Calculate the conductivity of \(0.025\) M \(\text{BaCl}_{2}\) solution if the molar conductivity of salt at \(25^{\circ }\text{C}\) is \(325\ \Omega ^{-1}\ \text{cm}^{2}\ \text{mol}^{-1}\).

The osmotic pressure of barium chloride and glucose solution of the same concentration at the same temperature are respectively \(0.62\) atm and \(0.24\) atm. Calculate the van't Hoff factor of barium chloride.

Find the osmotic pressure of \(10\%\) (w/v) solution of sucrose at \(27^{\circ }\text{C}\). (Molar mass of sucrose \(=342\) g/mol)

Which of the following aqueous solutions exhibits maximum freezing point depression assuming complete dissociation?

Which of the following types of cells is used for electroplating?

What is the packing efficiency of a metal crystal if it crystallizes in a face centered cubic lattice ?

Elements A and B combine to form the ionic compound \(\text{A}_{x}\text{B}_{y}\). The anions of B are arranged in hcp array and the cations of A occupy all the octahedral voids. Determine the values of x and y.

Aldehydes and Ketones can be converted to alkanes using
(A). LiAlH\({}_{4}\)/ H\({}_{3}\)O\({}^{+}\)
(B). Zn-Hg/ conc\({}^{n}\) HCl
(C). NH\({}_{2}\)-NH\({}_{2}\) / KOH in ethylene glycol
(D). K\({}_{2}\)Cr\({}_{2}\)O\({}_{7}\)/ dil.H\({}_{2}\)SO\({}_{4}\)