Question 11
In a sample of ethyl ethanoate $(C H_{3} C O O C_{2} H_{5})$ the two oxygen atoms have the same number of electrons but different number of neutrons; which of the following is the correct reason for it?

(a) One of the oxygen atoms has gained electrons
(b) One of the oxygen atoms has gained two neutrons
(c) The two oxygen atoms are isotopes
(d) The two oxygen atoms are isobars.

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Solution

The answer is (c).
The two O-atoms in $C H_{3} C O O C_{2} H_{5}$ can have different number of neutrons only if the two O-atoms are isotopes. It is because, isotopes of an element have the same number of protons (and electrons) but different number of neutrons.

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Q. Question 11
In a sample of ethyl ethanoate

(C H_{3} C O O C_{2} H_{5})

the two oxygen atoms have the same number of electrons but different number of neutrons; which of the following is the correct reason for it?

(a) One of the oxygen atoms has gained electrons
(b) One of the oxygen atoms has gained two neutrons
(c) The two oxygen atoms are isotopes
(d) The two oxygen atoms are isobars.

In a sample of ethyl ethanoate $(C H_{3} C O O C_{2} H_{5})$ , the two oxygen atoms have the same number of electrons but the different number of neutrons. Which of the following is the correct reason for it?

(a) one of the oxygen atoms has gained electrons

(b) one of the oxygen atoms has gained protons

(d) the two oxygen atoms are isobars

Q. The teacher asked Sushma that in ethyl ethanoate

(C H_{3} C O O C_{2} H_{5})

the two oxygen atoms have the same number of electrons but different number of neutrons. Which of the following is the correct reason for it?

Q. In a sample of ethyl ethanoate

(C H_{3} C O O C_{2} H_{5}),

the two oxygen atoms have the same number of electrons but different number of neutrons. Which of the following is the correct reason for it?

Q. How is the

O_{2}

molecule formed?

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Atomic Number

Standard IX Chemistry

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The answer is (c). The two O-atoms in CH3COOC2H5 can have different number of neutrons only if the two O-atoms are isotopes. It is because, isotopes of an element have the same number of protons (and electrons) but different number of neutrons.

The answer is (c).
The two O-atoms in $C H_{3} C O O C_{2} H_{5}$ can have different number of neutrons only if the two O-atoms are isotopes. It is because, isotopes of an element have the same number of protons (and electrons) but different number of neutrons.