POST YOUR BIO AND CHEM PAPER 1 DOUBT HERE !!!!

[Zsiddiqui]

Both H and Cl exist as diatomic gases, which means one molecule of both these gases will have two of their atoms.
Whereas one molecule of HCl contains one atom each of hydrogen and chlorine.

So, your answer is C.

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question 23 tooo pls

 

[gary221]

View attachment 43392qu

question 23 tooo pls

As they have already named the products which will be formed, all you have to do is select the ones mentioned.
Lead (II) nitrate → valency of lead will be 2.
We know that nitrate has a valency of 1, so the compound formed will be Pb(NO3)2
Also, Lead (IV) oxide = valency of Pb = 4.
So, compound will be PbO4

Ans = A

Hope you get it.