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IMPORTANT
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Which of the following is not a radioactive element?

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Important Questions on Chemistry

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UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 4 - Chemistry>Objective Questions>Q 12
Artificial silk is also called:
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UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 4 - Chemistry>Objective Questions>Q 14
The half life of a radioactive substance is 4 months then the time spent in decaying 34th of the substance would be:
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UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 4 - Chemistry>Objective Questions>Q 15
Which of the following is the unit of radioactivity?
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UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 4 - Chemistry>Objective Questions>Q 16
The radioactive substance must be kept in the container of:
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UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 4 - Chemistry>Objective Questions>Q 17
Cooking gas is a mixture of_____.
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UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 4 - Chemistry>Objective Questions>Q 19
Cobalt-60 is commonly used in radiation therapy because it emits:
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UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 4 - Chemistry>Objective Questions>Q 20
Which of the following is not an isotope of hydrogen?
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UPSC CAPF AC Paper - I
IMPORTANT
Lucent's General Science>Chapter 4 - Chemistry>Objective Questions>Q 21
O816, O817, O818 are called: