Chemistry Multiple Choice Questions Section A
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Questions and Answers

What is the correct decreasing order of basic strength for the three compounds given?

  • III > II > I (correct)
  • I > III > II
  • III > I > II
  • II > III > I

In corrosion prevention techniques, what is the major product of the given reaction?

  • \( C = O + CH_3MgI \)
  • \( P.T.O. \)
  • \( \text{CH}_3 \text{CN} \) (correct)
  • \( 56/C/1 \)

Which electrolyte is stronger based on the increase in molar conductivity after dilution?

  • X (correct)
  • Y
  • Both X and Y
  • None of the above

What type of isomerism is exhibited by the complexes [Co(NH3)5Br]SO4 and [Co(NH3)5SO4]Br?

<p>Optical (C)</p> Signup and view all the answers

What unit is used for the rate constant of a zero-order reaction?

<p>( s^{-1} ) (A)</p> Signup and view all the answers

Which compound shows the highest increase in molar conductivity after dilution?

<p>[Co(NH3)5Br]SO4 (C)</p> Signup and view all the answers

What is the energy of activation of the reaction given that log 2 = 0.30, log 4 = 0.60, and R = 8.314 J K^-1 mol^-1?

<p>10.38 kJ mol^-1 (A)</p> Signup and view all the answers

What is a common base found in both DNA and RNA?

<p>Adenine (B)</p> Signup and view all the answers

Which vitamin deficiency leads to bone deformities in children?

<p>Vitamin D (D)</p> Signup and view all the answers

Why do amino acids exhibit amphoteric behavior?

<p>Due to the presence of carboxyl and amino groups (A)</p> Signup and view all the answers

What happens when D-Glucose is treated with hydroxylamine?

<p>Formation of an oxime (D)</p> Signup and view all the answers

Which compound is used for corrosion prevention due to its ability to form a protective layer on metal surfaces?

<p>Zinc oxide (B)</p> Signup and view all the answers

Which compound is more acidic than phenol?

<p>o-nitrophenol (B)</p> Signup and view all the answers

What kind of reaction is a halogenated exchange reaction?

<p>R X + NaI (D)</p> Signup and view all the answers

What is the oxidation state of lanthanoids?

<p>+3 (A)</p> Signup and view all the answers

Which corrosion prevention technique involves the use of dry acetone and ZnCl2?

<p>$mol L^{-1} s^{-1}$ (B)</p> Signup and view all the answers

In which order should complex compounds be arranged based on stability?

<p>$III &gt; II &gt; I$ (D)</p> Signup and view all the answers

How does reducing the concentration of a reactant to half affect a second-order reaction's rate?

<p>Reduces it by 2 times (B)</p> Signup and view all the answers
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