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1
NDA General Ability 1st September 2024
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one among the following fertilizers is a source of nitrogen? 
1
Superphosphate
2
Potassium sulfate
3
Bone meal
4
Urea
2
NDA General Ability 1st September 2024
MCQ (Single Correct Answer)
+4
-1.33
Change Language
For Aluminium (Al) (atomic number: 13, mass number: 27), which one among the following statements is NOT correct?
1
Number of electrons present in Al is 13
2
Number of protons present in Al is 13
3
Number of neutrons present in Al is 14
4
The valency of Al is 2
3
NDA General Ability 1st September 2024
MCQ (Single Correct Answer)
+4
-1.33
Change Language
The elemental composition of diamond is
1
Carbon and Hydrogen
2
Carbon and Oxygen
3
Pure Carbon
4
Pure Silicon
4
NDA General Ability 1st September 2024
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one among the following is an example of chemical change?
1
Sublimation of camphor
2
Melting of ice
3
Heating of an iron rod
4
Mixing of NaOH and HCI
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