1
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following statements is not correct?
A
All carbons in diamond are linked by carbon-carbon single bond
B
Graphite is layered structure in which layers are held together by weak van der Waals' forces
C
Graphite layers are formed by hexagonal rings of carbon atoms
D
Graphite layers are held together by carbon-carbon single bond
2
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following solution will have pH less than 7 ?
A
NaOH
B
KCl
C
FeCl3
D
NaCl
3
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following is an oxidation-reduction reaction ?
A
NaOH + HCl $$\to$$ NaCl + H2O
B
CaO + H2O $$\to$$ Ca(OH)2
C
2Mg + O2 $$\to$$ 2MgO
D
Na2SO4 + BaCl2 $$\to$$ BaSO4 + 2NaCl
4
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following is not used as fertilizer?
A
Ammonium nitrate
B
Ammonium sulphide
C
Ammonium phosphate
D
Ammonium sulphate
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