When sucrose is heated with concentrated nitric acid the product is:
[A] Saccharic acid
[B] Oxalic Acid
[C] Carbonic Acid [D] Formic AcidSubmitted by :- Muhammad Nawaz
What are the constituents of the structure of ‘Agar’, the common culture medium for microbes in the laboratory?
- D-Glucose derivative and L-Galactose
- D-Mannose derivative and D- Galactose
- D-Galactose and an L-Galactose derivative
- An L-Mannose derivative and D-Galactose
Submitted by :- Muhammad Nawaz
Which of the mentioned substances belong to complex biomolecules?
- Lipids
- Carbohydrates
- Proteins
- All
Submitted by :- Muhammad Nawaz
Shorter polymers are known as______
- Monomer
- Oligomers
- Dimers
- Tetramers
Submitted by :- Muhammad Nawaz
Which compounds has fishing odor?
- Amines
- Organic sulphides
- Ammonia
- Carboxylic acids
Submitted by :- Muhammad Nawaz
Which is a not chemical characteristic of water?
- pH
- Color
- BOD
- COD
Submitted by :- Muhammad Nawaz
Which is a not physical characteristic of water?
- Smell
- Odor
- Chlorine contents
- Color
Submitted by :- Muhammad Nawaz
Which water require zero hardness?
- Boiler feed water
- Dyeing water
- Paper will water
- Laundry water
Submitted by :- Muhammad Nawaz
The presence of which in drinking water is responsible for mottling of teeth?
- Mercury
- Fluorine
- Chlorine
- Iodine
Submitted by :- Muhammad Nawaz
Water pollution is due to
- Industrial effluents
- Swages and other wastes
- Agricultural discharges
- All of these
Submitted by :- Muhammad Nawaz