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Solution


Q.

Read the passage carefully and answer the following questions from (i) to (v):

 

Vedanshi and Krati are working in the lab. During the experiment of determining the reactivity of acids and bases, the test tube containing chemical ‘X’ cracked and the liquid inside produced blisters on the skin of Krati. The pH strip turned blue to red with the reaction to the liquid. Vedanshi immediately called her teacher for help, and first aid was provided to Krati.

 

(iii)The given graph below is plotted against pH and H+ concentration.

In the experiment, Krati and Vedanshi listed the chemicals in list A and B. Which of the following is correct

List A List B
(1) HCl, Citric Acid, Oxalic Acid, Nitric Acid, Vinegar Ammonia, Sodium Hydroxide, Baking soda
(2) Ammonia, Sodium Hydroxide, Baking soda HCl, Citric Acid, Oxalic Acid, Nitric Acid, Vinegar
(3) HCl, Citric Acid, Oxalic Acid, Nitric Acid Ammonia, Sodium Hydroxide, Baking soda, Vinegar
(4) Ammonia, Sodium Hydroxide, Vinegar HCl, Citric Acid, Oxalic Acid, Nitric Acid, Baking soda

 
1 1  
2 2  
3 3  
4 4  

Ans.

(2)