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Chemistry 1488 MCQs [All-Courses]

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Which of the following potassium fertilizers are more useful for horticultural crops tobacco & potatoes ?

A KCI

B KNO3

C K2SO4

D KMnO4

Review Detailed Answer

Correct Answer: KNO3

Find the PH of a 0.001 M solution of Nitric acid HNO3?

A 2

B 3

C 4

D 5

Review Detailed Answer

Correct Answer: 3

Which of the following will give phosphoric acid one reaction with water_________________?

A PCI5

B P2O3

C P2O5

D All of the above

Review Detailed Answer

Correct Answer: All of the above

Which of the following fertilizers is not useful for paddy rice ?

A urea

B DAP

C Ammonium sulphate

D Ammonium nitrate

Review Detailed Answer

Correct Answer: Ammonium nitrate

Potassium Permanganate is used for purifying drinking water, because_________?

A It is a sterilising agent.

B It dissolves the impurities of water.

C It is a reducing agent.

D It is an oxidising agent.

Review Detailed Answer

Correct Answer: It is an oxidising agent.

SO3 is not absorbed in water directly because__________________?

A Reaction is exothermic

B It is insoluble in water

C Dilute acid is produced

D All of above

Review Detailed Answer

Correct Answer: Reaction is exothermic

Which of the following is the most suitable catalyst for ammonia synthesis ?

A Pt

B ZnO + Cr2O3

C Fe in fused mixture of Al2O3 + SiQ2 + MgO

D All of the above

Review Detailed Answer

Correct Answer: Fe in fused mixture of Al2O3 + SiQ2 + MgO

Marsh gas is_______?

A Nitrogen

B Ethane

C Methane

D Hydrogen

Review Detailed Answer

Correct Answer: Methane

Compounds of nitrogen and phosphorus are mostly________________?

A ionic

B covalent

C polar

D all varieties are possible

Review Detailed Answer

Correct Answer: covalent

Which of the following is macronutrient ?

A Cu

B Cl

C H

D Zn

Review Detailed Answer

Correct Answer: H

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Chemistry 1488 MCQs [All-Courses]

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All Topics 1488

Which of the following potassium fertilizers are more useful for horticultural crops tobacco & potatoes ?

Find the PH of a 0.001 M solution of Nitric acid HNO3?

Which of the following will give phosphoric acid one reaction with water_________________?

Which of the following fertilizers is not useful for paddy rice ?

Potassium Permanganate is used for purifying drinking water, because_________?

SO3 is not absorbed in water directly because__________________?

Which of the following is the most suitable catalyst for ammonia synthesis ?

Marsh gas is_______?

Compounds of nitrogen and phosphorus are mostly________________?

Which of the following is macronutrient ?