Select TRUE statements about lymph from the following:A. Lymph vessels carry lymph through the body and finally open into larger […]
The essential element taken up from the soil by the plants to synthesize proteins is: (a) Phosphorus(b) Nitrogen(c) Iron(d) Magnesium
Select from the following a hydrocarbon having one C-C bond and one triple C=-C bond: (a) Benzene(b) Cyclohexane(c) Butyne(d) Propyne
The property by virtue of which a solid material can be drawn into thin wires is called:(a) malleability(b) ductility(c) rigidity(d)
In order to prepare dry hydrogen chloride gas in humid atmosphere the gas produced is passed through a guard tube
In which one of the following situations a chemical reaction does not occur? (a) Milk is left open at room
Assertion (A): In the common domestic circuits the earth wire is connected to a metallic plate buried deep inside the
Assertion (A): Carbon and its compounds are our major sources of fuels.Reason (R): Most of the carbon compounds on burning
Q. Nos. 17 to 20, two statements are given one labelled as Assertion (A) and the other labelled as Reason
Q. Nos. 17 to 20, two statements are given one labelled as Assertion (A) and the other labelled as Reason
Green plants occupy the first trophic level in every food chain becau they : (A) exist over a large area.(B)
The incorrect statement about ozone is (A) It is a deadly poisonous gas.(B) It shields the surface of the earth