Test Details

Chemical Reactions And Equations

Chapter 1

Nov 15, 7:30 PM

30 minutes

Nov 16, 8:00 PM

40.0 marks

MCQ

30 questions

Sudev KRISHNAN.S.V

HI, I AM SUDEV KRISHNAN SV (co founder GRADIENT ACADEMY ), GUEST TEACHER AT SREE SARASWATHY VIDYALAYAM FACULTY OF PHYSICS AT ZENITH ENTRANCE COACHING CENTER .

Class Details

Physics

Chemistry

Class 10 Gradient Cbse

Physics

Chemistry

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Question Text

Question 1 :
State true or false. In redox reactions, oxidation and reduction take place simultaneously.

Question 2 :
Which of the following symbol is used to show solid precipitate?

Question 3 :
Which of the following reaction requires oxygen to be a reactant ?

Question 7 :
What is the difference between displacement over double displacement reactions ?

Question 8 :
Balanced chemical equations imply which of the following? $I$. Numbers of molecules are conserved in chemical change $II$. Numbers of atoms are conserved in chemical change. $III$. Mass is conserved in chemical change.

Question 9 :
Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of :

Question 11 :
The substance that initially involved in a chemical reaction is called a reactant.

Question 14 :
An oxidizing agent is always takes part in the reduction process while a reducing agent is always take part in the _______ process.

Question 15 :
Name the type of the following chemical reaction.$2KClO_3 \rightarrow 2KCl +3O_2$

Question 16 :
Aqueous solutions of magnesium chloride and silver nitrate are mixed to form solid silver chloride and aqueous magnesium nitrate. The balanced molecular equation contains which one of the following terms?

Question 18 :
AB + CD $\rightarrow$ AD + BC The reaction is an example of _________.

Question 21 :
Given $4NH_3(g)+5O_2(g)\rightarrow 4NO(g)+6H_2O(g)$ The above reaction is an example of: (i)displacement reaction (ii) combination reaction (iii) redox reaction (iv)neutralisation reaction

Question 22 :
Which of the following is(are) an endothermic process(es) ? (i) Dilution of sulphuric acid (ii) Sublimation of dry ice (iii) Condensation of water vapours (iv) Evaporation of water

Question 23 :
The reaction between carbon and oxygen can be represented as $C_{(s)}+O_{2(g)}\rightarrow CO_{2(g)}+heat$. In which of the following type(s), the above reaction can be classified? I. Combustion reaction II. Displacement reaction III. Endothermic reaction IV. Combination reaction.

Question 24 :
Identify the type of the reaction.Potassium + Iron oxide $\rightarrow$ Potassium oxide + Iron

Question 25 :
Which of the following equations is not an example ofsingle displacementreaction ?

Question 27 :
The phenomenon of formation of simple sugar from starch in our body is the example of which reaction? 

Question 28 :
The decomposition of $KClO_3$ to $KCI$ and $O_2$ on heating is an example of:

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