In which of the following statement "And" is not used as basic connective ·
p : L.C .M. of 5 and 3 is 15
q : 108 is a multiple of 2, 3, 6 and 36
r : Water is a compound of hydrogen and oxygen
s : Product of an even number and odd number is always odd

Options

A. p only
B. q, r only
C. p, r and s
D. p and s

Answer

To determine in which of the statements "and" is not used as a basic connective, we will analyze each statement one by one.

### Step 1: Analyze Statement P
- **Statement P**: "L.C.M. of 5 and 3 is 15."
- Here, "and" is used to connect the two numbers 5 and 3 to form the L.C.M. Thus, it is not functioning as a basic connective because it does not join two separate propositions or statements.

### Step 2: Analyze Statement Q
- **Statement Q**: "108 is a multiple of 2, 3, 6 and 36."
- In this statement, "and" connects multiple propositions: "108 is a multiple of 2," "108 is a multiple of 3," "108 is a multiple of 6," and "108 is a multiple of 36." Therefore, "and" is functioning as a basic connective here.

### Step 3: Analyze Statement R
- **Statement R**: "Water is a compound of hydrogen and oxygen."
- Similar to Statement P, "and" connects hydrogen and oxygen, but it does not join two separate propositions. It is stating a fact about water. Hence, "and" is not used as a basic connective in this statement.

### Step 4: Analyze Statement S
- **Statement S**: "Product of an even number and odd number is always odd."
- In this case, "and" connects "even number" and "odd number," but it is not joining two separate statements. It describes a relationship between the two types of numbers. Therefore, "and" is not a basic connective here as well.

### Conclusion
From the analysis:
- In statements P, R, and S, "and" is not used as a basic connective.
- In statement Q, "and" is used as a basic connective.

Thus, the correct answer is that "and" is not used as a basic connective in statements P, R, and S.

### Final Answer
The statements in which "and" is not used as a basic connective are P, R, and S.

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