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The sandstone in some iron ores is removed by:
Answer: C. Limestone The sandstone in some iron ores is removed by limestone.
Answer: C. Limestone
The sandstone in some iron ores is removed by limestone.
See lessThe colour of zinc sulphide is:
Answer: B. White The colour of zinc sulphide is white.
Answer: B. White
The colour of zinc sulphide is white.
See lessZinc sulphate is known as:
Answer: B. White vitriol Zinc sulphate is known as white vitriol.
Answer: B. White vitriol
Zinc sulphate is known as white vitriol.
See lessAn element which is highly toxic for plants and animals is?
Answer: C. Hg An element which is highly toxic for plants and animals is Hg.
Answer: C. Hg
An element which is highly toxic for plants and animals is Hg.
See lessThe term ‘fools gold’ is used for a mineral which shines like gold. It is:
Answer: A. Iron pyrite The term 'fools gold' is used for a mineral which shines like gold. It is iron pyrite.
Answer: A. Iron pyrite
The term ‘fools gold’ is used for a mineral which shines like gold. It is iron pyrite.
See lessAutomobile engine blocks are made up of:
Answer: C. Cast iron Automobile engine blocks are made up of cast iron.
Answer: C. Cast iron
Automobile engine blocks are made up of cast iron.
See lessFe ore is concentrated by:
Answer: A. Magnetic treatment Fe ore is concentrated by magnetic treatment.
Answer: A. Magnetic treatment
Fe ore is concentrated by magnetic treatment.
See lessClock pendulums are made from:
Answer: B. Invar Clock pendulums are made from invar.
Answer: B. Invar
Clock pendulums are made from invar.
See lessThe grey cast iron contains:
Answer: D. Graphite The grey cast iron contains graphite.
Answer: D. Graphite
The grey cast iron contains graphite.
See lessWhich of the following has the highest percentage of carbon?
Answer: B. Pig iron Pig iron has the highest percentage of carbon.
Answer: B. Pig iron
Pig iron has the highest percentage of carbon.
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