List of top Chemistry Questions asked in MHT CET

The shape of a molecule of NH$_3$, in which the central atom contains a lone pair of electrons, is

For the reaction, ${CO}_{(g)}+{Cl}_{2(g)}\rightleftharpoons {COCl}_{2(g)}$, then $K_p/K_c$ is equal to:

A hydrocarbon has molecular formula C2H6. Which of the class of hydrocarbons cannot have this formula?

If $1.202g{mL}^{-1}$ is the density of $20\mathrm{\%}$ aqueous KI, determine the molality of KI.

All alkali metals are good dash agents?

Phenol is also known as __________.

The unit cell length of sodium chloride crystal is 564 pm. Its density would be:

In RNA, thymine is replaced by__________.

Electrolysis of dilute aqueous $NaCl$ solution was carried out by passing $10$ milli ampere current. The time required to liberate $0.01$ mol of $H_2$ gas at the cathode is: ($1$ Faraday $=96500Cmo{l}^{-1}$)

The melting point of particles in nano form ___________

When $10ml$ of $0.2M$ solution of an acid is added to $250ml$ of a buffer solution with $pH=6.34$, the $pH$ of the solution becomes $6.32$. The buffer capacity of the solution is:

The tendency of a reaction to take place spontaneously is greatest when the reaction is:

Solid $Ba{\left({NO}_3\right)}_2$ is gradually dissolved in a $1.0\times {10}^{-4}M{Na}_2{CO}_3$ solution. At which concentration of ${Ba}^{2+}$, precipitate of ${BaCO}_3$ begins to form?$(K_{sp}$ for ${BaCO}_3=5.1\times {10}^{-9})$

Taking chromium and arsenic, which are toxic, out of pressure-treated wood, and using new less toxic chemicals for bleaching paper, are examples of___________.

In the presence of a catalyst, the heat evolved or absorbed during the reaction _______.

Given the solubility curves of ${\mathrm{KNO}}_3$ and $\mathrm{KCl}$, which of the following statements is not true?

The enthalpy and entropy change for the reaction:${\mathrm{Br}}_2(l)+{\mathrm{Cl}}_2(\mathrm{g})\to 2\mathrm{BrCl}(\mathrm{g})$ are $30\mathrm{kJ}{\mathrm{mol}}^{-1}$ and $105{\mathrm{JK}}^{-1}{\mathrm{mol}}^{-1}$ respectively.The temperature at which the reaction will be in equilibrium is:

The pH of a 10 ml aqueous solution of HCl is 4. The amount of water to be added to this solution in order to change its pH from 4 to 5 is:

A current of $2$ amp when passed for $5$ hours through a molten salt deposits $22.2\mathrm{g}$ of metal of atomic mass $177$. The oxidation state of the metal in the metal salt is:

The number of moles of electrons passed when a current of $2A$ is passed through a solution of electrolyte for $20$ minutes is:

In ___________, a reaction product is itself a catalyst for that reaction leading to positive feedback.

What is the name of the above reaction?

When you heat a sample of gas, what happens to the particles that make up the gas?

If benzene in solution containing 30% by mass in carbon tetrachloride, calculate the mole fraction of benzene.

Which of the following carboxylic acid is highly insoluble in water?