ex doc math
) The molecule of (NH3, ClF3, BCl3) does not deviate octet rule.
(c) The volume of the gas decreases (rapidly, slowly, regularly) with regular decrease of temperature.
(d) The anhydrous sodium carbonate can be used as a (an) (indicator, catalyst, primary standard)
(e) Faraday’s laws express the (qualitative, quantitative, volumetric) results of electrolysis.
(f) Oxidation number of sulphur in H2SO3 is ( +6,+4,-2) .
(g) Light is a source of (force, pressure, energy).
Nature selects the fittest and strongest individual in a given environment.
Production of radioactive materials causes pollution.
- Complete the following statements with appropriate words. Don’t copy the statements. (20 marks)
The type of roots in the sugarcane and bamboo are known as ……….. roots.
In bladderwort, some segmented leaves are modified into ……….. .
Flowers which have both stamens and carpels are termed as ……….. .
The definitive nucleus is formed by the fusion of two ……….. .
We can get many ………..products like dyes,oils, waxes and drugs from fruits.
A ………..is a fertilized and mature ovule.
Beans seed is germinated by ………..method.
The cavity containing the heart is called ………..cavity.
Behind the prostates are Cowper’s glands, the secretion of which helps in the transfer of ………... .
The ………..is the organ where photosynthesis occur.
Mammals have two sets of teeth, the milk dentition and ………. dentition.
The energy produced during aerobic respiration is stored in the ……….. as a chemical compound.
Absorption of water in land plants is through ………..part of the root .
Transporting media like ………..system and lymph system are essential for larger invertebrates and vertebrates.
A cell body of a ……….consists of nucleus and many dendrites.
Layers of fat cells are found at the base of