Question : Charcoal is used in water treatment as a/an
Option 1: Absorbent
Option 2: coagulant
Option 3: Solvent
Option 4: Adsorbent
Recommended: How to crack SSC CHSL | SSC CHSL exam guide
Don't Miss: Month-wise Current Affairs | Upcoming government exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: Adsorbent
Solution : The correct answer is adsorbent.
Charcoal is used in water treatment plants as a water purifying agent. It is an adsorbing agent, i.e. the unwanted ions, atoms, molecules etc. attach to the charcoal surface because of adhesion. Because of this property when charcoal is put in water it adsorbs all the impurities present in the water and purifies it. It removes small particles, chlorine, bad smell and taste etc.
Candidates can download this e-book to give a boost to thier preparation.
Application | Eligibility | Admit Card | Answer Key | Preparation Tips | Result | Cutoff
Question : Heavy water is used as a coolant in nuclear reactors. Heavy water is
Option 1: Water rich in minerals
Option 2: Ozonised water
Option 3: Water containing minerals of heavy metal
Option 4: Water containing heavy isotope of hydrogen
Question : An isotope of which of the following is used in the treatment of cancer?
Option 1: Cobalt
Option 2: Iron
Option 3: Nickel
Option 4: Aluminium
Question : KMnO can be used as a /an
Option 1: Insecticide
Option 2: Fertiliser
Option 3: Pesticide
Option 4: Disinfectant
Question : In an experiment, it was observed that metal A is 19 times heavier than water and metal B is 9 times heavier than water. In what ratio are metals A and B mixed so that the mixture thus obtained is 15 times heavier than water?
Option 1: 2 : 3
Option 2: 1 : 3
Option 3: 3 : 1
Option 4: 3 : 2
Question : Which drug is used as an anti-diabetic drug?
Option 1: Metformin
Option 2: Zolpidem
Option 3: Promethazine
Option 4: Hydralazine
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile