1
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.
2
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following gives the highest amount of hydrogen ions (H+) ?
A
Sodium hydroxide solution
B
Milk of magnesia
C
Lemon juice
D
Gastric juice
3
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Brine is an aqueous solution of
A
NaCl
B
NaOH
C
NaHCO3
D
Na2CO3
4
NDA 2018 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
Which one of the following is the chemical formula of washing soda?
A
NaHCO3
B
Na2CO3 . 10H2O
C
Na2CO3 . 5H2O
D
NaOH
Questions Asked from Marks 2.5