Monday, 12 January 2015


Which among the edible part of rice?

Which  alloy is used for making magnet ?
Alnico(Alnico is an acronym referring to a family of iron alloys which in addition to iron are composed primarily of aluminium (Al), nickel (Ni) and cobalt (Co), hence al-ni-co. They also include copper, and sometimes titanium)

Which form of Phosphorus is used in safety matches?
Red phosphorus.

Gobar gas contains mainly?

Brass is an alloy of ?
Copper and Zinc

Bronze is an alloy of ?
Copper and Tin

Chlorophyll is a naturally occurring chelate Compound in which the central metal is ?

Which is used in making smoke bombs ?

The element found on the surface of moon is ?

Which is used as a material for making protective windows in spaces probes ?

In which types of rocks materials like gold and copper are found?
Old Igneous Rocks

Which elements remain in liquid form in room temperature ?
Bromine(Br) and Mercury(Hg) (The only liquid elements at standard temperature and pressure are bromine (Br) and mercury (Hg). Although, elements caesium (Cs), rubidium (Rb), Francium (Fr) and Gallium (Ga) become liquid at or just above room temperature.)

The purest form of Iron is ?
Pig Iron (It is crude iron that is the direct product of the blast furnace and is refined to produce steel, wrought iron, or ingot iron)

The highest grade of coal whose surface is shining and has the highest calorific value is ?
Anthracite (Anthracite is hard and compact variety of mineral coal and it has a high luster.Its carbon content is between 92% and 98%. It accounts for around 1% of global coal reserves. Bituminous coal or Black coal is a relatively soft coal containing a tar like substance called bitumen. The carbon content of bituminous coal is 60-80%. Lignite coal or Brown coal has carbon content of 25-35%.) source - www.wikipedia.org

The element common to all acids is ?

The chemical added to the otherwise LPG cooking gas for imparting a detectable smell to the gas?
Ethanethiol(CH3CH2SH)(commonly it is known ethyl mercaptant  and is toxic.)

The charcoal which is used to decolourise raw sugar is ?
Wood charcoal 

Among the biotic components of the eco-system ,the producer system is ?
Green plants

which one of the air pollution can affect blood stream leading to death?
Carbon monodioxide

What is pollination ?
Transfer of pollen from anther to stigma(It transfer from anther(male part) to stigma(female part) which causes fertilization and reproduction)

The disease caused by deficiency of protein in children is called?
Kwashiorkor (Kwashiorkor is a form of severe protein-energy malnutrition. Sufficient calorie intake, but with insufficient protein consumption, distinguishes it from marasmus. marasmus is a form of severe malnutrition characterised by energy deficiency. )

Plants synthesis protein from ?
Amino acids

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