List of top Chemistry Questions asked in MHT CET

Which among following statements is NOT true for neoprene?

The common name of Benzene-1,2-diol is

What are the final products obtained by ozonolysis of propene?

Which element from following belongs to oxygen family?

The vapour pressure of a solvent decreases by 2.5 mm Hg by adding a solute. What is the mole fraction of solute? (Vapour pressure of pure solvent is 250 mm Hg)

What is the number of octahedral and tetrahedral voids presents respectively in 0.25 mole of a substance having hcp structure?

When tert-butyl bromide is heated with silver fluoride, the major product obtained is

For a reaction $\mathrm{A} \rightarrow \text{product}$, rate constant is $2 \times 10^{-2}\ \mathrm{s}^{-1}$. The initial concentration of A is $1.0\ \mathrm{mol\ dm}^{-3}$. What is the value of $\log_{10}\!\left(\frac{1}{[\mathrm{A}]_t}\right)$ after 100 seconds?

Photons of energy $10\text{ eV}$ are incident on a photosensitive surface of threshold frequency $2 \times 10^{15}\text{ Hz}$. The kinetic energy in eV of the photoelectrons emitted is [Planck's constant $h = 6.63 \times 10^{-34}\text{ Js}$]

The light of wavelength '$\lambda$' is incident on the surface of metal of work function $\phi$ and emits the electron. The maximum velocity of electron emitted is [$m = \text{mass of electron and } h = \text{Planck's constant, } c = \text{velocity of light}$]

A needle is $7\text{ cm}$ long. Assuming that the needle is not wetted by water, what is the weight of the needle, so that it should float on water surface? [Surface tension of water = $70\text{ dyn/cm}$, $g = 980\text{ cm/s}^2$]

Identify the homoleptic complex from the following.

What is the difference between $\Delta H$ and $\Delta U$ for reaction given below at 298 K?
(R = 8.314 $\text{J}\ \text{K}^{-1}\ \text{mol}^{-1}$)
$2\text{C}_6\text{H}_{6(\ell)} + 15\text{O}_{2(g)} \rightarrow 12\text{CO}_{2(g)} + 6\text{H}_2\text{O}_{(\ell)}$

What is the energy of an electron in stationary state corresponding to n = 2?

Identify the molecule having a non-zero dipole moment.

Which among the following compounds has highest melting point?

Which of the following alkenes on oxidation by $\text{KMnO}_4$ in dil. $\text{H}_2\text{SO}_4$ forms adipic acid?

Which among following functional groups exhibits $-\text{R}$ effect?

Identify compound from following having highest basic strength.

Identify the polymer used in making floor tiles.

How many tetrahedral voids are present in 0.4 mole of a compound that forms hcp structure?

Pure dihydrogen (99.5%) is obtained by the electrolysis of

Which of the following formulae is used to obtain depression in freezing point?

For the reaction $\text{N}_{2(g)} + 3\text{H}_{2(g)} \rightarrow 2\text{NH}_{3(g)}$, what is the relation between $\frac{d[\text{N}_2]}{dt}$ and $\frac{d[\text{H}_2]}{dt}$?

Electrical conductance due to all the ions in $1\ \text{cm}^3$ of given solution is called as