Test Details

Chemical Reactions And Equations

Nov 15, 6:00 PM

120 minutes

Nov 15, 8:00 PM

70.0 marks

MCQ

30 questions

MIND SHAPER

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Question Text

Question 1 :
The substance that initially involved in a chemical reaction is called a reactant.

Question 2 :
Which type of chemical decomposition reaction is the following reaction? $Cu(OH)_2\xrightarrow {heat} CuO+H_2O$

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

Question 4 :
Which of the following reaction requires oxygen to be a reactant ?

Question 5 :
State true or false. In a chemical equation, the products are written on the left-hand side and the reactants on the right-hand side with an arrow in between.

Question 9 :
Identify the type of reaction which will occur based on the information provided about the reactants: ${CH}_{4}(g)+{O}_{2}(g)\rightarrow$

Question 10 :
$FeCl_3 + 3NaOH \rightarrow 3NaCl + Fe(OH)_3$ The reaction is an example of________.

Question 12 :
What type of chemical reaction does the reaction belong to? Hydrogen sulphide gas reacts with oxygen gas to form solid sulphur and liquid water.

Question 14 :
When magnesium burns in air, compound of magnesium formed are magnesium oxide and :

Question 16 :
Select the correct alternative. The reaction between acid and base to form salt and water is an example of :

Question 17 :
When nitrogen reacts with hydrogen under high temperature and pressure to form ammonia gas. This is an example of:

Question 18 :
Which of the statements about the reaction below are incorrect ? $2PbO(s) + C(s) \rightarrow 2Pb(s) + CO_2(g)$ (a) Lead is getting reduced. (b) Carbon dioxide is getting oxidised. (c) Carbon is getting oxidised. (d) Lead oxide is getting reduced

Question 19 :
Reaction of iron filings with powdered sulfur is a _____ process.

Question 22 :
A quantity of 5.68 g of pure $ P_{4}O_{10} $ is dissolved completely in sufficient water and the solution is diluted to 250 ml. Which of the following statement (s) is/are correct?

Question 23 :
If the value of $n$ is $2$, then the atomic weight of metal $M$, is

Question 24 :
How many grams of ammonium nitrate will be formed in the reaction?

Question 25 :
What amount of $BaSO_4$ can be obtained on mixing 0.5 mole $BaCl_2$ with 1 mole of $H_2SO_4$ ?

Question 27 :
What is the minimum mass of ${ CaCO }_{ 3 }(s)$, below which it decomposes completely, required to established equilibrium in a $6.50\ litre$ container for the reaction: ${ CaCO }_{ 3 }(s)\rightleftharpoons CaO(s)+{ CO }_{ 2 }(g);\space { K }_{ c }=0.005\ mole/litre$

Question 28 :
An amount of 0.01 mole of $ SO_{2}Cl_{2} $ is hydrolysed completely in sufficientwater (no gas is allowed to escape out ) and the solution is diluted to 200 ml. Which of the following statement is/are correct? (Ag = 108 )

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