1.  one β-particle

2.  one α-particle

3.  two αand two β-particles

4.  one αand two β-particles

4
Correct Answer :

one αand two β-particles


Explanation :
No Explanation available for this question

1.  600 g

2.  1000 g

3.  1250 g

4.  2000 g

4
Correct Answer :

2000 g


Explanation :
No Explanation available for this question

1.  isobars

2.  isotopes

3.  isomers

4.  isotones

4
Correct Answer :

isobars


Explanation :
No Explanation available for this question

1.  3.125 gn

2.  2.084 g

3.  1.042 g

4.  4.167 g

4
Correct Answer :

3.125 gn


Explanation :
No Explanation available for this question

1.  zero order

2.  first order

3.  second order

4.  order more than three

4
Correct Answer :

first order


Explanation :
No Explanation available for this question

1.  30 hours

2.  45 hours

3.  60 hours

4.  120 hours

4
Correct Answer :

60 hours


Explanation :
No Explanation available for this question

1.  Carbon- 14 fraction is the same in all objects

2.  Carbon- 14 is highly insoluble

3.  Ratio of carbon- 14 and carbon- 12 are constant

4.  all the above

4
Correct Answer :

Ratio of carbon- 14 and carbon- 12 are constant


Explanation :
No Explanation available for this question

1.  be increased

2.  be increased

3.  change only slightly

4.  remain unchanged

4
Correct Answer :

remain unchanged


Explanation :
No Explanation available for this question

1.  2500 dis/min

2.  5000 dis/min

3.  20,000 dis/min

4.  1250 dis/min

4
Correct Answer :

1250 dis/min


Explanation :
No Explanation available for this question

1.  10%

2.  12.50%

3.  15%

4.  17.5%.

4
Correct Answer :

12.50\%


Explanation :
No Explanation available for this question

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