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Which is not true about H2SO4?
(a) It is composed of 2 Hydrogen, 1 Sulphur and 4 Oxygen atoms.
(b) It relative molecular mass is 98.
(c) It is composed of one molecule of H2, one atom of S and two molecules of O2
(d) Its relative molecular mass is 108.
  • a)
    (a), (b) and (c) are correct
  • b)
    (c) and (d) are correct.
  • c)
    (b) and (c) are correct
  • d)
    All of these
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Which is not true aboutH2SO4?(a) It is composed of 2 Hydrogen, 1 Sulph...
H2SOis composed of 2 Hydrogen, 1 Sulphur and 4 Oxygen atoms. It relative molecular mass is 98.
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Most Upvoted Answer
Which is not true aboutH2SO4?(a) It is composed of 2 Hydrogen, 1 Sulph...
The correct answer is option B: (c) and (d) are correct.

Explanation:
Let's analyze each statement and determine which one is not true about H2SO4.

(a) It is composed of 2 Hydrogen, 1 Sulphur, and 4 Oxygen atoms.
This statement is true. H2SO4 is the chemical formula for sulfuric acid, which consists of two hydrogen atoms (H2), one sulfur atom (S), and four oxygen atoms (O4). Therefore, H2SO4 is composed of 2 hydrogen, 1 sulfur, and 4 oxygen atoms.

(b) Its relative molecular mass is 98.
This statement is false. The relative molecular mass of H2SO4 is not 98. To calculate the relative molecular mass, we need to add up the atomic masses of all the atoms in the compound. The atomic masses of hydrogen, sulfur, and oxygen are approximately 1, 32, and 16 respectively. Therefore, the relative molecular mass of H2SO4 is 2(1) + 32 + 4(16) = 98.

(c) It is composed of one molecule of H2, one atom of S, and two molecules of O2.
This statement is true. H2SO4 consists of one molecule of H2, one atom of S, and two molecules of O2. The chemical formula H2SO4 represents the composition of the compound.

(d) Its relative molecular mass is 108.
This statement is false. As mentioned earlier, the relative molecular mass of H2SO4 is not 108. It is calculated to be 98, as explained in statement (b).

Therefore, the correct answer is option B: (c) and (d) are correct.
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Which is not true aboutH2SO4?(a) It is composed of 2 Hydrogen, 1 Sulphur and 4 Oxygen atoms.(b) It relative molecular mass is 98.(c) It is composed of one molecule ofH2, one atom of S and two molecules ofO2(d) Its relative molecular mass is 108.a)(a), (b) and (c) are correctb)(c) and (d) are correct.c)(b) and (c) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer?
Question Description
Which is not true aboutH2SO4?(a) It is composed of 2 Hydrogen, 1 Sulphur and 4 Oxygen atoms.(b) It relative molecular mass is 98.(c) It is composed of one molecule ofH2, one atom of S and two molecules ofO2(d) Its relative molecular mass is 108.a)(a), (b) and (c) are correctb)(c) and (d) are correct.c)(b) and (c) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Which is not true aboutH2SO4?(a) It is composed of 2 Hydrogen, 1 Sulphur and 4 Oxygen atoms.(b) It relative molecular mass is 98.(c) It is composed of one molecule ofH2, one atom of S and two molecules ofO2(d) Its relative molecular mass is 108.a)(a), (b) and (c) are correctb)(c) and (d) are correct.c)(b) and (c) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which is not true aboutH2SO4?(a) It is composed of 2 Hydrogen, 1 Sulphur and 4 Oxygen atoms.(b) It relative molecular mass is 98.(c) It is composed of one molecule ofH2, one atom of S and two molecules ofO2(d) Its relative molecular mass is 108.a)(a), (b) and (c) are correctb)(c) and (d) are correct.c)(b) and (c) are correctd)All of theseCorrect answer is option 'B'. Can you explain this answer?.
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