MHT CET PYQs for Nernst Equation with Solutions: Practice MHT CET Previous Year Questions

1.

If \( E^\circ (Ag^+ | Ag) = +0.80 \, V \), What is the potential developed for \( Ag (s) \rightarrow Ag^+ (0.01M) + e^- \) at 298 K?

• +0.9184 V
  
• -0.9184 V
  
• +0.6816 V
  
• -0.6816 V
  

2.

Determine the electrode potential of \(\text{Sn}^{2+}(0.01\text{M}) | \text{Sn(s)}\) at \(25^{\circ}\text{C}\) if \(E_{\text{Sn}}^{\circ}\) is \(-0.136\) V.

• \(0.186\) V
• \(-0.186\) V
• \(-0.195\) V
• \(0.195\) V

3.

Which of the following polymers is formed due to the co-polymerization of \( 1,3 \)-butadiene and phenylethene?

• \( \text{Buna-N} \)
  
• \( \text{Neoprene} \)
  
• \( \text{Novolac} \)
  
• \( \text{Buna-S} \)
  

4.

The standard potential of \(\text{Cu}^{+2}/\text{Cu}\) is \(0.34\) V at \(298\) K. Calculate its potential at the same temperature when the \(\text{Cu}^{+2}\) ion concentration is \(0.1\) M.

• \(0.64\) V
• \(0.34\) V
• \(0.31\) V
• \(0.37\) V

5.

The monomers of Buna-S rubber are:

• \( \text{Isoprene and butadiene} \)
  
• \( \text{Butadiene and phenol} \)
  
• \( \text{Styrene and butadiene} \)
  
• \( \text{Vinyl chloride and sulphur} \)
  

6.

What happens to the emf for the cell, $Zn|Zn_{(aq)}^{2+}||Ag_{(aq)}^{+}|Ag_{(s)}$ if concentration of $Ag^{+}$ decreases to 0.1 M?

• increase by 0.0592 V
  
• decrease by 0.0592 V
  
• increase by 0.0296 V
  
• decrease by 0.0296 V

7.

Which one of the carbanions is the least stable?

8.

The cell potential for the following cell notation is approximately:
\( \text{M(s)}|\text{M}^{3+}(aq, 0.1M)||\text{N}^{2+}(aq, 0.1M)|\text{N(s)} \) \[ E^\circ_{\text{M}^{3+}/\text{M}} = 0.6 \, \text{V}, \quad E^\circ_{\text{N}^{2+}/\text{N}} = 0.1 \, \text{V}. \]

• \( 0.51 \, \text{V} \)
  
• \( 1.5 \, \text{V} \)
  
• \( 2.0 \, \text{V} \)
  
• \( 2.5 \, \text{V} \)
  

9.

If $E^{\circ}(\text{Cu}^{2+}/\text{Cu})=+0.34\text{ V}$. What is potential for $\text{Cu}(s)\rightarrow \text{Cu}^{2+}(aq)(0.1\text{M})+2e^{-}$ at 298 K?

• +0.3696 V
  
• -0.3696 V
  
• +0.3104 V
  
• -0.3104 V
  

10.

For the cell reaction, $A_{(s)}+B_{(aq)}^{2+}\rightarrow A_{(aq)}^{2+}+B_{(s)}$ if equilibrium constant of reaction is $10^{4}$ at 298 K. What is standard emf of cell?

• 0.0592 V
  
• 0.1184 V
  
• 0.1776 V
  
• 0.2368 V
  

11.

For a certain redox reaction in galvanic cell \(\text{X}_{(s)}+\text{Y}_{(aq)}^{2+}⟶\text{X}_{(aq)}^{2+}+\text{Y}_{(s)}\), \(\text{E}^{\circ}\) cell is \(0.0296 \text{V}\) at \(298 \text{K}\). What is equilibrium constant of reaction?

• \(1\)
• \(10\)
• \(100\)
• \(1000\)

12.

Which of the following arrangements does not represent the correct order of the property stated against it?

• \( \text{V}^{2+}<\text{Cr}^{2+}<\text{Mn}^{2+}<\text{Fe}^{2+} \): Paramagnetic behaviour
  
• \( \text{Ni}^{2+}<\text{Co}^{2+}<\text{Fe}^{2+}<\text{Mn}^{2+} \): Ionic size
  
• \( \text{Co}^{3+}<\text{Fe}^{3+}<\text{Cr}^{3+}<\text{Sc}^{3+} \): Stability in aqueous solution
  
• \( \text{Sc}<\text{Ti}<\text{Cr}<\text{Mn} \): Number of oxidation states
  

13.

In Williamson synthesis, if tertiary alkyl halide is used, then:

• \( \text{Ether is obtained in good yield.} \)
  
• \( \text{Ether is obtained in poor yield.} \)
  
• \( \text{Alkene is the only reaction product.} \)
  
• \( \text{A mixture of alkene as a major product and ether as a minor product forms.} \)
  

14.

What is reduction potential of hydrogen gas electrode when pure hydrogen gas is at 1 atmospheric pressure and platinum electrode is in contact with HCl solution of pH 1 at 298 K?

• -0.1184 V
  
• -0.0592 V
  
• -0.0296 V
  
• -0.592 V

15.

Tincture of iodine is the common name for:

• \( \text{Iodoform} \)
  
• \( 2\text{-iodopropane} \)
  
• \( 2\text{-3\% iodine solution in alcohol-water} \)
  
• \( \text{Iodobenzene} \)