General Knowledge-Question Answer(Set-4)
Staff Reporter | 19-01-31

Q. Washing soda is the common name for ?

? Sodium carbonate

Q. Which of the gas is not known as green house gas ?

? Hydrogen

Q. Bromine is a ?

? Red liquid

Q. The hardest substance available on earth is ?

? Diamond

Q. Which of the following is used as a lubricant ?

? Graphite

Q. The average salinity of sea water is ?

? 3.5%

Q. Galvanised iron sheets have a coating of ?

? Zinc

Q. The group of metals Fe, Co, Ni may best called as ?

? Transition metals

Q. Heavy water is ?

? Deuterium oxide

Q. The element common to all acids is ?

? Hydrogen

Q. Non stick cooking utensils are coated with ?

? Teflon

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Kamal patra
Kamal patra
3 years ago

Aamar kmc notes lagba

Rituparna Misra
Rituparna Misra
3 years ago

Would you please arrange PDF for “General Knowledge and Current affairs “?