1. What will be the pH \mathrm{pH} pH of pure water after addition of ethanol?
<7 <7 <7
7
>7 >7 >7 and <14 <14 <14
14
2. Which organ of human body controls the pH of blood?
Kidney
Liver
Lungs
Heart
3. Which is the correct word?
Discipline
Restaurant
Theoretical
Lieutenant
4. The phrase 'Far Cry" means-
Crying in distance
Crying for attention
Long distance
Short distance
5. Which genus of algae is used to make Biofuel?
Oedogonium
Mycrocystis
Botryococcus
Nostoc