NDA CHEMISTRY QUIZ

Question 1:

Match List I and List II

A-III,B-II,C-IV,D-I

A-III,B-IV,C-I,D-II

A-III,B-IV,C-II,D-I

A-II,B-IV,C-III,D-I

Question 2:

Which of the following is the example of nuclear fusion reaction ?

Enormous amount of energy produced by the sun
Nuclear reactor
Atom bomb
Hydrogen bomb

Both 1 and 2

Both 2 and 3

Both 1 and 4

Both 2 and 4

Question 3:

If number of protons and mass number of nuclei remains same after radioactive decay then it is called

Alpha decay

Beta decay

Gamma decay

Nuclear fusion reaction

Question 4:

Directions – Question consist of two statements labelled as statement I and statement II . Examine both the statement and mark the correct choice according to the codes given below

Statement I - Nuclear fusion is exothermic reaction and is also known as thermonuclear reaction .

Statement II – Nuclear fission is endothermc reaction

Both statement I and statement II are true and Statement II is the correct explanation of Statement I

Both statement I and statement II are true and Statement II is not the correct explanation of Statement I

Statement I is true , but statement II is false

Statement I is false , but II is true

Question 5:

A radioactive nucleus has a decay constant (day)^-1 . Its half life is

2 day

3 day

2 s

3s

Question 6:

Which of the following statement is true about beta particles?

They are positively charged particle

They have more ionizing power than alpha rays

They have least penetrating power

They are deflected towards positive plate in electric field .

Question 7:

Atom bomb is based on which principle ?

Uncontrolled nuclear fission reaction

Controlled nuclear fusion reaction

Nuclear fusion

Both 1 and 2

Question 8:

Which of the following statement is not true about alpha particles ?

Alpha particles are doubly charged helium ions

They are deflected towards negative electrode in presence of electric field

Alpha particles have least penetrating power

They are represented as ₂⁴He

Question 9:

Which of the following is the radioactive isotope used for the treatment of leukaemia ?

Radioisotope of phosphorus

Radioisotope of carbon

Radioisotope of iodine

Radioisotope of sodium

Question 10:

Match List I and List II

A-II , B-I,C-III

A-III , B-II,C-I

A-I , B-III,C-II

A-III , B-I,C-II

सूची I	सूची II
^¹³¹I	शरीर में रक्त के प्रवाह को मापने के लिए प्रयोग किया जाता है।
⁵⁹Fe	कैंसर कोशिकाओं को नष्ट करने के लिए प्रयोग किया जाता है
⁶⁰Co	थायरॉयड ग्रंथि की गतिविधि के लिए प्रयोग किया जाता है
²⁴Na	एनीमिया का पता लगाने के लिए प्रयोग किया जाता है

सूची I	सूची II
235 U	मंदक के रूप में प्रयुक्त
भरी जल	अवशोषित न्यूट्रॉन
नियंत्रक छड़ें	ईंधन के रूप में प्रयुक्त

NDA CHEMISTRY QUIZ - 16

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NDA CHEMISTRY QUIZ - 16

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