1.

Assertion(A) - The nearly tetrahedral arrangement of the orbitals about the oxygen atom allows each water molecule to form hydrogen bonds with as many as four neighbouring water molecules. Reason(R)-In ice each water molecule forms four hydrogen bonds as each molecule is fixed in the space.

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Both A and R TRUE and R is the CORRECT EXPLANATION of A
Both A and R true and R is not acorrect explanation of A
A is true but R is FALSE
A is false but R is true

Answer :A


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