Question

1.The rate of reaction is ........ proportional to the concentration 
Directly

a)Indirectly

b)Variably

c)Invariably

2.On dipping a pH paper in a solution it turns into yellow then the solution is 


a)Acidic

b)Basic

c)Both

d)none

3.Which of the following statements are correct about a chemical equilibrium. I. it is dynamic in nature. II.The rate of the forward and backward reactions are equal at equilibrium. III. The concentration of reactants and products may be different 

a)ii iii and iv

b)i,iiandiii

c)I, ii, and iv

d)I, iii and iv

5.Combination reactions are otherwise called as 

a)Precipitation reaction

b)Synthesis reaction

c)Thermal decomposition reaction

d)single displacement reaction

6.In equilibrium state 

a)Rare of forward reaction is equal to rate of backward reaction

b)rate of backward reaction is not equal to rate of Forward reaction

c)Both

d)nOne

7.the term pH means power of 

a)Hydrogen

b)hydroxyl

c)Both

d)None

8.Toothpastes are generally 


a)Acidic

b)Basic

c)Both

d)None

9.other name for Calcium Hydroxide is 

a)Quicklime

b)Slaked lime

c)Soda water

b)None​

Answer 1

1.directly

2.basic

3.i and ii

5.synthesis reaction

6.a

7.hydrogen

8.basic

9.slaked lime

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