A metal that can be extracted from cassitertite is
A metal that can be extracted from cassitertite is A. cacium B. magnesium C. tin D. copper Correct…
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Which of the following metals is passive to concentrated trioxonitrate (V) acid?
Which of the following metals is passive to concentrated trioxonitrate (V) acid? A. Iron B. Tin C. Copper…
The hydrocarbon that burns in air with a sooty flames is
The hydrocarbon that burns in air with a sooty flames is A. C2H6 B. C3H8 C. C4H10 D.…
2-methylprop-1-ene is an isomer of
2-methylprop-1-ene is an isomer of A. but-2-ene B. pent-1-ene C. 2-methylbut-2-ene D. 2-methylbut-1-ene Correct Answer: Option A Explanation
What properties of duralumin make it more useful than its constituent metals?
What properties of duralumin make it more useful than its constituent metals? A. It is heavy with a…
The pair of metals in the reactivity series that are usually extracted by the electrolysis…
The pair of metals in the reactivity series that are usually extracted by the electrolysis of their ores…
Hydrogen is used in oxy-hydrogen flames for melting metals because it
Hydrogen is used in oxy-hydrogen flames for melting metals because it A. evolves a lot of heat when…
A pair of compounds that can be used to generate a gas which has physiological…
A pair of compounds that can be used to generate a gas which has physiological effect on human…
The salt that reacts with dilute hydrochloric acid to produce a pungent smelling gas which…
The salt that reacts with dilute hydrochloric acid to produce a pungent smelling gas which decolourizes acidified purple…
Chlorine, bromine and iodine resemble one another in that they
Chlorine, bromine and iodine resemble one another in that they A. dissolve in alkalis B. react violently with…