Class XI

Less corrosive acid is
  1. H2CO3
  2. H2SO4
  3. HNO3
  4. HCl
 At 100 °C, speed of reaction becomes
  1. 16 times faster
  2. 64 times faster
  3. 128 times faster
  4. 148 times faster
 In neutralization reactions, conductivity meters are an ideal choice
  1. To record change in pH
  2. To measure and remove H+ and OH- ions
  3. To record heat given out
  4. To measure amount of current flowing
Oxidizing agents does not include
  1. Potassium iodide
  2. Potassium manganate
  3. Potassium dichromate
  4. Promine solutions
 In plenty of space, natural movement of particles occur due to
  1. Concentration gradient
  2. Osmotic pressure
  3. Diffusion
  4. Active transport
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