Chemistry

Which of the following is not a naturally occurring iron ore?

A. FeCl2 B. Fe2SO3 C. Fe2O3 D. Fe2CO3 E. FeS2 Correct Answer: Option A - FeCl2

5 years ago

Which of the following metals cannot extracted from its ore by using carbon (ll) oxide as the reducing agent?

A. Cu B. Zn C. Al D. Pb E. Fe Correct Answer: Option C - Al

5 years ago

Water gas is a mixture of?

A. CO2 and H2 B. CO and H2O C. CO2 and CO D. CO and N2 E. CO and H2…

5 years ago

How many isomers can be obtained from C4H10?

A. o B. 1 C. 2 D. 3 E. 4 Correct Answer: Option C - 2

5 years ago

What volume of oxygen will be left unreacted when a mixture of 100cm³ of hydrogen and 200cm³ of oxygen are exploded in a eudiometer?

A. 300cm³ B. 200cm³ C. 150cm³ D. 100cm³ E. 50cm³ Correct Answer: Option C - 150cm³

5 years ago

Which of the following is not true of the rusting of iron?

A. Rusting is a reduction process B. Rusting of iron takes place in the presence of oxygen and moisture C.…

5 years ago

Which of the following is not decomposed by heat?

A. CaCO3 B. CuCO3 C. ZnCO3 D. Na2CO3 E. MgCO3 Correct Answer: Option D - Na2CO3

5 years ago

Bubbling of carbon (IV)oxide into calcium hydroxide solution results in the formation of?

A. CaCO3 B. CuCO3 C. ZnCO3 D. Na2CO3 E. MgCO3 Correct Answer: Option A - CaCO3

5 years ago

What quantity of silver is deposited when 96500C of electricity is passed through a solution containing silver ions? (Ag = 108, 1F = 96500C)

A. 1.08g B. 40g C. 10,.8g D. 21.6g E. 108g Correct Answer: Option E - 108g

5 years ago

The following are heavy chemicals except?

A. tetraoxosulphate (IV) acid B. caustic soda C. sodium trioxocarbonate (IV) D. ethene E. dyes Correct Answer: Option E -…

5 years ago
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