Three compounds X, Y and Z were taken into three different laboratory vessels and they were carried out by a chemist in his car. The car caught fire due to short circuit and the chemist came out of th

Question

Three compounds X, Y and Z were taken into three different laboratory vessels 
and they were carried out by a chemist in his car. The car caught fire due to 
short circuit and the chemist came out of the car and noticed following 
observations :

Prashant Kotian · Accepted Answer

Correct answer: D. Step 1: Identify the state of reactants and products. Pb(NO3)2 and NaOH are highly soluble in water, forming a clear solution. Step 2: Observe the chemical change. The reaction leads to the formation of insoluble lead(II) hydroxide, denoted by the downward arrow (Pb(OH)2↓). Step 3: Since a precipitate is formed from soluble starting materials, this reaction belongs to type A (precipitate formation reaction). Thus, the correct option is (a).

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