Chemistry

The raw materials used for the smelting of iron ore in a furnace is?The raw materials used for the smelting of iron ore in a furnace is?

The raw materials used for the smelting of iron ore in a furnace is?

A. CaSO4 B. CaCO3 C. CuSO4 D. Zn(NO3)2 Correct Answer: Option B = CaCO3

4 years ago
A good drying agent should be?A good drying agent should be?

A good drying agent should be?

A. deliquescent B. effervescent C. hygroscopic D. efflorescent Correct Answer: Option C - hygroscopic

4 years ago
The presence of nitrogen in air is to slow down?The presence of nitrogen in air is to slow down?

The presence of nitrogen in air is to slow down?

A. respiration and combustion B. combustion and corrosion C. corrosion and respiration D. respiration and transpiration Correct Answer: Option B…

4 years ago
A supersaturated solution is said to contain?A supersaturated solution is said to contain?

A supersaturated solution is said to contain?

A. more solute than it can dissolve at that temperature in the presence of undissolved solute B. as much solute…

4 years ago
When temporary hard water is boiled for sometime in a kettle; the inner surface of the kettle becomes coated with a deposit of?When temporary hard water is boiled for sometime in a kettle; the inner surface of the kettle becomes coated with a deposit of?

When temporary hard water is boiled for sometime in a kettle; the inner surface of the kettle becomes coated with a deposit of?

A. calcium tetraoxosulphate(VI) B. calcium trioxocarbonate (IV) C. calcium hydrogentrioxocarbonate (IV) D. aluminium trioxocarbonate (IV) Correct Answer: Option B -…

4 years ago
The IUPAC nomenclature of compound CH3CH2COOCH2CH3 is?The IUPAC nomenclature of compound CH3CH2COOCH2CH3 is?

The IUPAC nomenclature of compound CH3CH2COOCH2CH3 is?

A. propyl ethanoate B. ethyl butanoate C. ethyl propanoate D. methyl butanoate Correct Answer: Option C - ethyl propanoate

4 years ago
Certain useful waxes are composed mainly of?Certain useful waxes are composed mainly of?

Certain useful waxes are composed mainly of?

A. amino acids B. glycerols C. alkanols D. alkanoates Correct Answer: Option B - glycerols

4 years ago
The conversion of open chain alkanes into cycloalkanes and aromatic compounds is called?The conversion of open chain alkanes into cycloalkanes and aromatic compounds is called?

The conversion of open chain alkanes into cycloalkanes and aromatic compounds is called?

A. cracking B. reforming C. isomerization D. polymerization Correct Answer: Option B - reforming

4 years ago
How many structural isomers of chlorobutane are possible?How many structural isomers of chlorobutane are possible?

How many structural isomers of chlorobutane are possible?

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

4 years ago
The hydrocarbon used in the production of styrene is?The hydrocarbon used in the production of styrene is?

The hydrocarbon used in the production of styrene is?

A. ethyne B. propyne C. ethane D. ethene Correct Answer: Option D - ethene

4 years ago
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