- 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.
2025
All Solved Current and Past Papers of 2025 are included in this section of ETEST Academy’s Website. All MCQs of Year 2025 are solved with short detailed answers. ETEST Academy updates this portion of Past Papers 2025 on daily basis.
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.
Ionic product of (Kw) of water will increase if:
- H plus ion are added
- OH negative ions are added
- Temperature increased
- Pressure increase
- c
-
Kw is ionic product of water.
Kw tells us about strength of water in making H+ and OH-.
H+ makes water acidic and HO- makes water basic.
Pure water has equal amount of H+ and HO-.