Tag: evs

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Questions Related to evs

Multiple choice evs let's play with water law of constant proportion - i law of constant proportion law of definite proportions

Drying clothes is an example of :

  1. condensation

  2. evaporation

  3. hydration

  4. all of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Drying clothes is an example of evaporation as in evaporation water evaporates by the heat of the sun thus helping in drying of clothes .

And hydration means the process of absorbing water .
And condensation means water that collects as droplets on a cold surface when humid air is in contact with it.

Multiple choice evs let's play with water law of constant proportion - i law of constant proportion law of definite proportions

Evaporation is the process of a substance in:

  1. liquid form transitioning into the gas phase

  2. solid form transitioning into the gas phase

  3. liquid form transitioning into the solid phase

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Evaporation of the substance is the process in which the substance transition from liquid phase to gas phase. Condensation is the process in which gas returns to liquid form. Hence, options A is correct.

Multiple choice evs let's play with water law of constant proportion - i law of constant proportion law of definite proportions

The fog appeared on sun glasses when it get in contact with steam

  1. Condensation

  2. Evaporation

  3. Sublimation

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The fog appeared on sun glasses when gets in front of hot steam due to condensation.Condensation is the process where the vapor converts into liquid.
Hence option A is correct.

Multiple choice evs let's play with water law of constant proportion - i law of constant proportion law of definite proportions

Which of the following involves evaporation

  1. drying up of mopped floor

  2. Drying of wet hair after some time

  3. drying up of water bodies like lakes and rivers

  4. A,B,C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Evaporation is the process of a liquid converts into gaseous phase.In all these process liquid moles are evaporated into gaseous phase.So all the above processes involves evoporation.
Hence option D is correct.

Multiple choice evs let's play with water law of constant proportion - i law of constant proportion law of definite proportions

The mirror in the bathroom during a shower becomes foggy due to:

  1. condensation

  2. evaporation

  3. sublimation

  4. both A and B
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The mirror in the bathroom during a shower becomes foggy because warmer water vapor in the air hits the cooler surface of the mirror. This phenomenon is due to condensation. Hence option A is correct.
Multiple choice evs structure and functions of living organisms -ii experiments on digestive enzymes role of receptors in the mouth types of teeth introduction to human digestive system circulatory system and organs

Human dentition is described as

  1. Heterodont, diphyodont and thecodont

  2. Heterodont, monophyodont and thecodont

  3. Heterodont, diphyodont, thecodont and bundodont

  4. Heterodont, polyphyodont and pleurodont
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Human dentition can be describes as:

Heterodont: the teeth are morphologically different from each other.
Diphyodont: there are two sets of teeth that appear in the lifetime, the milk-teeth and the permanent teeth.
Thecodont: the teeth are firmly enclosed within the deep socket of the jaw bone.
Hence, the correct answer is 'Heterodont, diphyodont and thecodont'.

Multiple choice evs structure and functions of living organisms -ii experiments on digestive enzymes role of receptors in the mouth types of teeth introduction to human digestive system circulatory system and organs

Nasal chamber is divided in tow parts by?

  1. Sphenoid bone

  2. Palatine bone

  3. Mesethemoid cartilage

  4. Zygomatic bone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The nasal cavity is divided into two lateral halves by the nasal septum, which is formed by the vomer, the perpendicular plate of the ethmoid bone, and the septal cartilage.