1
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
2
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following is the chemical formula of gypsum?
A
CaSO4 . 2H2O
B
Ca2SiO4
C
2CaSO4 . H2O
D
CaSO4
3
NDA 2018 Paper 2
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following statements about the law of conservation of mass is correct?
A
A given compound always contains exactly same proportion of elements.
B
When gases combine in a reaction, they do so in a simple ratio by volume, provided all gaseous are at room temperature.
C
Matter can neither be created nor be destroyed.
D
Equal volumes of all gases at same temperature and pressure contain equal number of molecules.
4
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which of the following properties is true for a tooth paste?
A
It is acidic
B
It is neutral
C
It is basic
D
It is made up of calcium phosphate, the material of tooth enamel.
Questions Asked from Marks 2.5