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In blast furnace, iron oxide is reduced to iron by
Answer: C. CO In blast furnace, iron oxide is reduced to iron by CO.
Answer: C. CO
In blast furnace, iron oxide is reduced to iron by CO.
See lessFerrous sulphate is commercially called
Answer: B. Green vitriol Ferrous sulphate is commercially called green vitriol.
Answer: B. Green vitriol
Ferrous sulphate is commercially called green vitriol.
See lessPig iron is called _____.
Answer: A. Cast iron Pig iron is called cast iron.
Answer: A. Cast iron
Pig iron is called cast iron.
See lessChemical name of Vermilion is:
Answer: A. Mercuric sulphide Chemical name of Vermilion is mercuric sulphide.
Answer: A. Mercuric sulphide
Chemical name of Vermilion is mercuric sulphide.
See lessAn important Zn ore is________.
Answer: A. Calamine An important Zn ore is calamine.
Answer: A. Calamine
An important Zn ore is calamine.
See lessWhich is known as philosopher’s wool?
Answer: D. ZnO ZnO is known as philosopher's wool.
Answer: D. ZnO
ZnO is known as philosopher’s wool.
See lessWhich of the following is a life saving mixture?
Answer: A. Mixture of helium and oxygen Mixture of helium and oxygen is a life saving mixture.
Answer: A. Mixture of helium and oxygen
Mixture of helium and oxygen is a life saving mixture.
See lessThe lowest boiling of helium is due to its:
Answer: D. Small size The lowest boiling of helium is due to its small size.
Answer: D. Small size
The lowest boiling of helium is due to its small size.
See lessThe coloured discharge tubes for advertisement mainly contain:
Answer: C. Neon The coloured discharge tubes for advertisement mainly contain neon.
Answer: C. Neon
The coloured discharge tubes for advertisement mainly contain neon.
See lessThe noble gas which was discovered first in the sun and then on the earth is:
Answer: D. Helium The noble gas which was discovered first in the sun and then on the earth is helium.
Answer: D. Helium
The noble gas which was discovered first in the sun and then on the earth is helium.
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