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What is the mass of 0.20 mole of C2H5OH (ethanol)?

Use the relation One mole of molecules = Gram molecular mass of a substance Mass = number of moles × molar mass Number of moles = 0.2mol... View Article

What Is The Lens Which Forms A Virtual And Enlarged Image

Only convex lens forms enlarged and virtual image of an object when object is placed between focal point and optical centre.... View Article

Why is housefly termed as the ‘Public Enemy No.1’?

Housefly spreads several diseases including dysentery, cholera, typhoid, etc. Hence, it is termed as 'Public Enemy No.1.'... View Article

What is the percentage of heat loss from the skin?

85%About 85% of body heat is lost through the skin by convection, conduction, radiation and evaporation of sweat.... View Article

How is the amoeboid shape of WBCs helpful to them?

The amoeboid shape of WBCs helpful them to squeeze out through the capillary wall. White blood cells help in defence mechanism for our body.... View Article

Which Latin word is commonly used for the digit 9?

The Latin word commonly used for the digit 9 is 'enn'. It is abbreviated as 'e'.... View Article

A minute pore which helps in exchange of gases is:

Stomata are minute pores present in the leaf that help in the exchange of gases.... View Article

Name the reactions in which precipitate is formed.

Precipitation reactions involve the formation of a precipitate.... View Article

How do you determine the speed of a moving vehicle?

To calculate the speed of a moving vehicle, the distance between two points have to be measured and the time in which the distance was covered.... View Article

If Z = 6, what would be the valency of the element?

If Z = 6, that means atomic number of the element is 6. The electronic configuration of the element is 2,4. Since it has 4 electrons in its... View Article

Who discovered the presence of nucleus in the cell?

The presence of nucleus in the cell was discovered by Robert Brown. He also discovered Brownian movement in the protoplasm.... View Article

Which type of tissue is found at the tips of roots?

Lateral meristem: Sides of roots and stemCambium: Below the bark Intercalary meristem: At internodes... View Article

What is the reaction taking place in the fuel cell?

Answer: A fuel cell can be defined as an electrochemical cell that generates electrical energy from fuel via an electrochemical reaction. These... View Article

Is the optical centre always at the centre of lens?

Only if both the curved surfaces are symmetrical, optical centre will be at the centre.... View Article

Which is the bottom and swollen part of the carpel?

Ovary is the swollen bottom part of the flower which contains the female gamete.... View Article

What are polymers prepared in laboratories known as?

Polymers are large molecules made by bonding a series of building blocks. The polymers which are prepared in the laboratories are called... View Article

Identify ‘X’ in the reaction: 2HCl + CuO †’ X + H2O

Acids react with metallic oxides to form salt and water.CuO + 2HCl CuCl2 + H2O... View Article

What is the speed of the Earth during a revolution?

30km/sec is the speed of the earth during a revolution.... View Article

Which season is marked by the onset of the monsoon?

Rainy season is marked by the onset of the monsoon.... View Article

Which crops occupy the largest area in the country?

Kharif occupies the largest area in the country.... View Article

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