- NaCl (Solid)
- NaCl (Molten)
- NaCl (Aqueous)
- Both B & C
- a
-
In NaCl, Ions are fixed in place or in solid form and cannot move.
In NaCl (Molten / Melted), Ions are free to move and electricity can flow.
NaCl (Aqueous / dissolved in water), Na and Cl can dissolved in water and can carry current.
The molar volume of CO2 gas is 22.4 dm3 at:
- 25 C and 2 atm
- 0 K and 1 atm
- 25 K and 0.5 atm
- 0 C and 1 atm
- d
-
1ATM (atmosphere) is a normal air pressure at sea level.
1ATM is equal to 760 Torr.
In simple words atm is unit of Pressure.
The space (volume) that 1 mole of a gas takes is called molar volume.
CaCo3 is a polymorph and exist in two crystalline form:
Viscosity of liquid increases with the decrease in:
- Temperature
- Intermolecular forces
- Atmospheric pressure
- Molecular mass
- a
-
Viscosity is the resistance of liquid to flow.
Which one of the following is not a state function?
- Temperature
- Work done
- Internal energy
- Pressure
- b
-
Temperature, Internal Energy and Pressure are state functions.
One Calorie is equal to:
- 4.184 joule
- 41.48 joule
- 418.4 joule
- 4184.0 joule
- a
-
1 Kilocalorie is equal to 4184 J.
A calorie is the amount of heat required to raise the temperature of 1 gram of water by 1°C.
A microscope property which has some definite initial and final value is:
- Work done
- Phase
- Internal Energy
- State function
- c
AlCl3 acts as Lewis acid as it:
- Accepts proton
- Donates proton
- Is having incomplete octet
- Donates electrons
- c
Which of the following statement is not correct for a galvanic cell?
- Reduction occur cathode
- Oxidation occur at cathode
- Electron flow from cathode to anode
- Both A and B
- a
-
Oxidation occurs at anode.
Electron flow from anode to cathode.
SCUBA is a breathing apparatus which contains:
- 50% Nitrogen and 50% Oxygen
- 96% Helium and 4% Oxygen
- 96% Oxygen and 4% Helium
- 78% Nitrogen and 21% Oxygen
- b
-
SCUBA stands for Self Contained Underwater Breathing Apparatus. It is used for breathing underwater.
Pure mixture of 50% both is dangerous.
Normal ratio of both is not used for deep depth.
Maximum Helium as 96% is used in deep dive to prevent from Nitrogen Narcosis.
Too much Oxygen is dangerous.