MTW Science Academy

When one gene pair hides the effect of the other unit, the phenomenon is referred to as -
1) Mutation
2) Epistasis
3) Dominance
4) None of the options

1. Bowman’s Capsule’ works as a part of the functional unit of which among the following human physiological system?
[A] Circulatory System
[B] Respiratory System
[C] Excretory System
[D] Reproductive System

Which one of the following mixture is homogeneous
A) starch and sugar
B methanol and water
C) graphite and charcoal
D) calcium carbonate and calcium bicarbonate

Most commonly used bleaching agent is -
1) Alcohol
2) Carbon dioxide
3) Chlorine
4) Sodium chloride

Brass is an alloy of -
1) copper and iron
2) zinc and iron
3) copper and zinc
4) iron and nickel

Name... Shubash class... +2 subject... Chemistry 1st in weekly test which was on the 4th August 2018

By which of the following can petrol fire be extinguished?
1) Sand
2) Water
3) Carbon dioxide
4) Saw dust

Which of the following is responsible for acid rain?
1) Nitrogen oxide and Carbon dioxide
2) Nitrogen oxide and Carbon monoxide
3) Sulphur dioxide and Nitrogen oxiede
4) None of the above

Calcium carbide is used for artificial ripening of green fruits because it produces -
1) Auxin
2) Florigen
3) Methylene
4) Acetylene