1
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following minerals is used as a fuel in nuclear power stations?
A
Bauxite
B
Quartz
C
Feldspar
D
Pitch-blende
2
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following is not a synthetic detergent?
A
CH3(CH2)10CH2OSO$$_3^ - $$Na+
B
[CH3(CH2)15 - N - (CH3)3]+Br$$-$$
C
CH3(CH2)16COO$$-$$Na+
D
CH3(CH2)16COO(CH2CH2O)n . CH2CH2OH
3
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following is an example of a clean fuel?
A
Coke
B
Propane
C
Petrol
D
Wax
4
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following metals does not react with cold water?
A
Calcium (Ca)
B
Potassium (K)
C
Magnesium (Mg)
D
Sodium (Na)
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