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

Which among the following is an example of zero order reaction?

For a first order reaction, \[\ce{A -> B}\], if [A] = 1 M and rate is 4 × 10⁻² M s⁻¹. What is the rate constant of the reaction?

Which among the following is an example of pseudo first order reaction?

A first order reaction takes 40 minutes for 30% decomposition. What is the half-life of reaction?

In a reaction \[\ce{N2_{(g)} + 3H2_{(g)} -> 2NH3_{(g)}}\], if the rate of disappearance of N_2(g) is 2.6 × 10⁻⁴ M/s, the rate of disappearance of H_2(g) in M/s is ____________.

A first order reaction takes 40 minutes for 30% completion. Calculate the half-life of reaction.

0.0210 M solution of N₂O₅ is allowed to decompose at 43°C. How long will it take to reduce to 0.0150 M?
(Given k = 6.0 × 10⁻⁴ sec⁻¹)

A first order reaction is 50% completed in 16 minutes. The percentage of reactant that will react in 32 minutes is ____________.

The time required to decompose SO₂Cl₂ to half of it's initial amount is 60 minutes. Calculate rate constant for this first order reaction.

A metallic element has a cubic lattice with edge length of unit cell 2 Å. Calculate the number of unit cells in 200 g of the metal, if density of metal is 2.5 g cm^-3?

Which of the following formulae is used to find edge length of bee unit cell?

Which among the following is a correct formula of Bariumtetrachlorocuprate (ll)?

When 2 moles of an ideal gas are expanded isothermally from a volume of 12.5 L to 15.0 L against constant external pressure of 7 60 mm Hg. Calculate the amount of work done in joule?

If 200 mL of ethylene gas and 200 mL of HCl gas are allowed to react at 2 atmosphere pressure as per given reaction,

\[\ce{C2H_{4(g)} + HCl_{(g)} -> C2H5Cl_{(g)}}\]

Calculate pressure volume work in Joule.

What is systematic name of [Co(NH₃)₄Cl₂]Cl?

What is the correct order of C-X bond strength in CH₃X?

Which among the following has highest boiling point?

Which of the following is obtained on alkaline hydrolysis of 1,1-dichlorocyclohexane?

Which of the following compounds yields 3-Ethylpentan-3-ol by using ethyl magnesium iodide followed by acid hydrolysis?

Propane nitrile on reaction with ethyl magnesium iodide in presence of dry ether gives complex. This imine complex on acid hydrolysis forms.