Question: The spreading of fragrance or scent in air is due to_______________?

• 1. Diffusion
• 2. Effusion
• 3. Attraction with air
• 4. Low dsensity

Question: The highest temperature at which a substance can exist as a liquid is called its______________?

• 1. Critical temperature
• 2. Standard temperature
• 3. Absolute temperature
• 4. Upper consulate temperature

Question: What do we call to sudden expansion of plasma ?

• 1. Avogadros law
• 2. Grahams law of diffusion
• 3. Joule Thompson effect
• 4. Daltons law of partial pressure

Question: What will be the pressure of 1 mole of an ideal gas maintained at 300 K and 250cm3 volume ?

• 1. 98.5 atm
• 2. 96.7 atm
• 3. 95.8 atm
• 4. 97.1 atm

Question: Who made volume and pressure correction to explain deviation of gases from ideal behaviour ?

• 1. Clausius
• 2. Boltzman
• 3. Charles
• 4. Vander waal

Question: The gases become non-ideal at ________________?

• 1. High temperature and high pressure
• 2. Low temperature and low pressure
• 3. High temperature and low pressure
• 4. Low temperature and high pressure

Question: The pH of 10-3 mol dm-3 of an aqueous solution of H2SO4 is_________________?

• 1. 3
• 2. 2.7
• 3. 2
• 4. 1.5

Question: If a buffer solution of higher pH than seven is to be made we use___________________?

• 1. Strong acid and strong base
• 2. Weak acid and strong base
• 3. Weak acid and strong base
• 4. Weak acid and its salt with strong base

Question: AgCl dissolved with conc (2×10-2) Ksp will be__________________?

• 1. 3.6 x 10-6
• 2. 3.6 x 10-5
• 3. 7.2 x 10-6
• 4. 4 x 10-4

Question: Which of the following will not change the concentration of ammonia at the equilibrium ?

• 1. Increase of pressure
• 2. Increase of volume
• 3. Addition of catalyst
• 4. Decrease of temperature