Write scientific reason.
A. Hydrogen is combustible, oxygen helps combustion, but water helps to extinguish fire.
B. Constituent substances of a colloid cannot be separated by ordinary filtration.
C. Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
D. A solid matter has the properties of definite shape and volume.
A. Hydrogen is combustible, oxygen helps combustion, but water helps to extinguish fire.
B. Constituent substances of a colloid cannot be separated by ordinary filtration.
C. Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
D. A solid matter has the properties of definite shape and volume.
a.Water is made up of two elements, that's hydrogen and oxygen. Hydrogen is flammable, but oxygen is not. Flammability is the ability of a combustible material with an adequate supply of oxygen (or another oxidiser) to sustain enough heat energy to keep a fire going after it has been ignited. Though water is made up of two atoms of hydrogen and one atom of oxygen by forming an ionic compound, it does not possess the characteristics of them because a compound does not have the properties of its constituent elements. Therefore, water has its own properties, which helps to extinguish fire.
b.Constituent substances of a colloid cannot be separated by ordinary filtration because the size of the particles in a colloids(or colloidal solution) is bigger than those in a true solution but smaller than those in suspension.It is in between 1nm to 100nm in diameter. The size of ordinary filter paper is more than 100nm due to which colloidal particles are passed through the pores of a filter paper. Due to which, we prefer to use ultrafilter paper so that, filteration of colloidal particles take place easily.
c.Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass because sour taste indicates presence of an acid and if acid is poured in a vessel made up of metal, then acid reacts with metal and makes it poisonous in nature.So we prefer to take vessel made up of glass material.
d.A solid matter has the properties of definite shape and volume because of the following reasons:
1)Intermolecular force of attraction between the particles of matter is very strong.
2)Internuclear space between the particles of matter is negligible.
3)Particles of matter are very close to each other that they only vibrate at their fixed position.
a.Water is made up of two elements, that's hydrogen and oxygen. Hydrogen is flammable, but oxygen is not. Flammability is the ability of a combustible material with an adequate supply of oxygen (or another oxidiser) to sustain enough heat energy to keep a fire going after it has been ignited. Though water is made up of two atoms of hydrogen and one atom of oxygen by forming an ionic compound, it does not possess the characteristics of them because a compound does not have the properties of its constituent elements. Therefore, water has its own properties, which helps to extinguish fire.
b.Constituent substances of a colloid cannot be separated by ordinary filtration because the size of the particles in a colloids(or colloidal solution) is bigger than those in a true solution but smaller than those in suspension.It is in between 1nm to 100nm in diameter. The size of ordinary filter paper is more than 100nm due to which colloidal particles are passed through the pores of a filter paper. Due to which, we prefer to use ultrafilter paper so that, filteration of colloidal particles take place easily.
c.Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass because sour taste indicates presence of an acid and if acid is poured in a vessel made up of metal, then acid reacts with metal and makes it poisonous in nature.So we prefer to take vessel made up of glass material.
d.A solid matter has the properties of definite shape and volume because of the following reasons:
1)Intermolecular force of attraction between the particles of matter is very strong.
2)Internuclear space between the particles of matter is negligible.
3)Particles of matter are very close to each other that they only vibrate at their fixed position.
