MAH-MHT CET (PCM/PCB) entrance exam Question Bank Solutions for Chemistry

Which one of the following methods is used to make platinum sol?

When a cation or anion from ionic solid leaves its regular lattice site and moves to occupy an interstitial site, it is called as ____________.

If entropy of a solid is greater than zero, at T = 0, it is called ______.

Which of the following statements regarding catalyst is FALSE?

Which of the following is multimolecular colloid?

In the group \[\begin{array}{cc}
\ce{R'}\phantom{.........}\\
\backslash\phantom{.........}\\
\ce{C = O}\\
/\phantom{........}\\
\ce{R}\phantom{.........}
\end{array}\], the carbonyl carbon is joined to other atoms by ____________.

Identify the CORRECT statement.

____________ is used as a catalyst for the following reaction:

\[\ce{CO + \underset{\text{(Steam)}}{H2O} ⇌ CO2 + H2}\]

Which of the following is/are CORRECT?

(I) Acidic character: HF > HCl > HBr

(II) Thermal stability: HF > HCl > HBr

(III) Bond dissociation enthalpy: HF < HCl < HBr

For the preparation of mixed ethers by Williamson synthesis, which of the following combination will give the best yield?

Which of the following statements Is true for carbonyl group?

Identify the symbol used for water according to Dalton's atomic theory?

Zirconium is refined by ____________.

Low reactivity of ketones with respect to aldehydes is due to ____________.

Identify the CORRECT statements from the following.

i. The colour of colloidal dispersion depends on size of colloidal particles.

ii. Tyndall effect is used to distinguish between colloidal dispersion and true solution.

iii. Eosin and congo red are examples of negatively charged sols.

Which of the following methods is used to separate wolframite and stannic oxide present in cassiterite?

Action of hydrogen iodide on anisole gives ______.

Which among the following solids shows Frenkel defect?

Calculate the difference between heat of combustion of carbon monoxide gas at constant pressure and at constant volume at 27°C? (R = 2 cal K^-1 mol^-1).

Which of the following statements is INCORRECT for Dalton's atomic theory?