Balochistan MDCAT Past Paper 2023

The solubility of carboxylic acid in water gradually decreases with

  • Increases in molecular mass
  • Increases the amount of acid
  • Decreases in molecular mass
  • Decreases the amount of water

Which of the following is not true about Canal rays

  • Show deflection under electric & magnetic fields
  • Do not cause mechanical motion
  • 9.54 x 10^7 C/kg
  • 1.6726 x 10^-27 kg

Hess’s law state the same thing as

  • First law of thermodynamics
  • Second law of thermodynamics
  • Henry’s law
  • Third law of thermochemistry

How many moles of a gas occupy 30.57 L at 55 °C and 0.83 atm

  • 0.62 mol
  • 0.94 mol
  • 0.84 mol
  • 0.1 mol

What is the weight of oxygen that is required for the complete combustion of 3.2 kg of methane

  • 12.8 kg
  • 3.2 kg
  • 15.4 kg
  • 6.4 kg

What is the quantum number for the unpaired electron of chlorine atom (n, l, m )

  • 3, 0, 0
  • 2, 1, 0
  • 3, 1, 1
  • 2, 1, 1

Which ionic radii is the smallest one

  • Na+
  • Mg+
  • Mg++
  • Al+++

The overall charge on transition state in SN2 reaction is

  • Partially positive
  • Neutral
  • Negative
  • Positive

In which method the rate of reaction involving ions can be studied

  • Electrical conductivity method
  • Spectrometry
  • Optical rotation method
  • Refractometric method

Number of primary carbon atoms present in isobutane is

  • Two
  • Four
  • Three
  • One

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