Viraf Dalal Chemistry Class 10 Solutions. We covered all the Viraf Dalal Chemistry Class 10 Solutions in this post for free so that you can practice well for the exam.
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Viraf Dalal Chemistry Class 10 Objective with Solutions for Students
Which one of the following is not used as fertilizer?
(a) Ammonium nitrate
(b) Ammonium sulfide
(c) Ammonium phosphate
(d) Ammonium sulfate
Option b – Ammonium sulfide
Brine is an aqueous solution of:
(a) NaCl
(b) NaOH
(c) NaHCO3
(d) Na₂CO3
Option a – NaCl
Which one of the following is NOT true for bleaching powder?
(a) It is used as a reducing agent in chemical industries
(b) It is used for bleaching wood pulp in paper factories
(c) It is used for disinfecting drinking water
(d) It is used for bleaching linen in the textile industry
Option a – It is used as a reducing agent in chemical industries
How is carbon black obtained?
(a) By heating wood at high temperature in the absence of air
(b) By heating coal at high temperature in the absence of air
(c) By burning hydrocarbons in a limited supply of air
(d) By heating coal at high temperature in the presence of air
Option c – By burning hydrocarbons in a limited supply of air
The poisonous nature of Carbon monoxide (CO) is due to its:
(a) Insolubility in water
(b) Ability to form a complex with hemoglobin
(c) Ability to reduce some metal oxides
(d) Property of having one sigma bond
Option b – Ability to form a complex with hemoglobin
Which one of the following metals is alloyed with sodium to transfer heat in a nuclear reactor?
(a) Potassium
(b) Calcium
(c) Magnesium
(d) Strontium
Option a – Potassium
Which one of the following statements is not correct?
(a) All carbons in diamonds are linked by carbon-carbon single bonds.
(b) Graphite is a layered structure in which layers are held together by weak van der Waals forces.
(c) Graphite layers are formed by hexagonal rings of carbon atoms.
(d) Graphite layers are held together by carbon-carbon single bonds.
Option d – Graphite layers are held together by carbon-carbon single bonds
We covered all the viraf dalal chemistry class 10 solutions above in this post for free so that you can practice well for the exam.
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