Statement A- Each atom of sodium is 23 times heavier than one atom of hydrogen.

Statement R- The atomic weight of sodium is 23 and hydrogen is 1.

Statement A is true, Statement R is true;Statement R is correct explanation for Statement A

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Statement A is true, Statement R is true;Statement R is not correct explanation for Statement A

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Statement A is true, Statement R is false

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Statement A is false, Statement R is true

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Solution

The correct option is A
Statement A is true, Statement R is true;Statement R is correct explanation for Statement A

The atomic weight of sodium is 23 and hydrogen is 1, hence statement R is the correct explanation of statement A as statement A states that each atom of sodium is 23 times heavier than one atom of hydrogen.

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Similar questions

The question consists two statements. Statement A is an Assertion and statement R is the Reason. The question has four choices out of which only one is correct. Choose the correct one.

Statement A- Each atom of sodium is 23 times heavier than one atom of hydrogen.

Statement R- The atomic weight of sodium is 23 and hydrogen is 1.

Q. So since 1 atomic unit is exactly 1/12 the mass of 1 c-12 atom,
can we say as follows;
atomic mass of sodium is 23 , so can we say that the atomic mass of sodium is 23 times heavier than 1/12 the mass of 1 carbon-12 atom?

Calculate the number of sodium and carbon atoms in 8 grams of sodium carbonate $(N a_{2} C O_{3})$ .

If atomic mass of sodium is 23 a.m.u., then the mass of 3.01 x 10²³ sodium atoms is:

Q. One gram atom of an element contains

6.02 \times 10^{23}

atoms.
(a) Find the number of oxygen atoms in 4g of

O_{2}

.
(b) Which is heavier, one oxygen atom or 10 hydrogen atoms?

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