- A. Streptomycin
- B. Chloramphenicol
- C. Penicillin
- D. Sulphaguanidine
(c) Penicillin
- A. Antibiotic
- B. Antipyretic
- C. Sedative
- D. Psychedelic
(b) Antipyretic
- A. Antacid
- B. Antipyretic
- C. Analgesic
- D. Antihistanics
(a) Antacid
- A. Boiling point
- B. Melting point
- C. Critical temperature
- D. Ignition temperature
(d) Ignition temperature
- A. Blue
- B. Yellow
- C. Black
- D. Way part
(a) Blue
Alexander Fleming
July 29
oxidizing agent
not reached
water
(False)
Correct statement: Antibiotics does not work for viruses like cold and flu
(False)
Correct statement : Antipyretic are the substances that lower the temperature during fever.
(False)
Correct statement: All fuels do not form flame.
True
True
1. Antipyretic
Reduce body temperature
2. Analgesic
Reduce pain
3. Antacid
ORS Solution
4. Phosphorus
Spontaneous combustion
5. Carbon – di – oxide
Leads to respiratory problem.
Antiseptic, Chemical messenger
Yellow fever.
CO 2 , Methane, Chlorofluorocarbons
Garlic, Turmeric, Aloe vera.
Mixture of chloroxylenol and terpincol
KJ/Kg.
Rapid combustion
Spontaneous combustion
Explosion
Fuel, Heat and Oxygen.
One should not take medicines without consulting doctors because if a wrong medicine is accidently eaten for a disease, it may not cure the disease but actually can have harmful side effects to the body.
Difference between Antiseptic and Disinfectants
Antiseptic
Disinfectants
1.
All antiseptic are disinfectants
1. All disinfectants are not antiseptic
2.
It can be applied on the live tissue
2. It can be apply on in animate object
3.
E.g. skin / Mucous
3. E.g. Surface, lab working tables, floor.
The minimum temperature at which a substance catches fire and burns is called its ignition temperature..
Amount of fuel = 4.5 kg
Heat produced = 1,80,000 kj
Calorific value = ?∴ Calorific value = 40,000 kj/kg
Many micro organisms and plants synthesize chemicals which are toxic in nature to protect them from invading organisms.
Those biosynthesized chemicals can be isolated from the plants/micro organisms and was used as medicines against infectious diseases, these substances were called as antibiotics.
Ex: Chloramphenicols, tetracyclines, Penicillin derivatives, cephalosporin’s and their derivatives.
The world’s first antibiotic penicillin was discovered by Dr. Alexander Fleming.
Analgesics:
Analgesics or pain killers that react like the pain-suppressing chemicals released by the body.
They suppress the feeling of ‘pain.
This analgesics drug selectively relieves pain by acting either in CNS (Central Nerves System) or on peripheral pain mechanism, without significantly altering consciousness.
The water heated by Akash will get heated in a shorter time because he kept his beaker near the hottest (non- luminous) zone of the flame. But Arul kept the beaker in the luminous zone which is moderately hot. So, it will take longer time.
After adding sugar, potassium permanganate and glycerin to the dish, immediately step back because spark and solid potassium permanganate will be expelled from the dish.
When potassium permanganate mixes with glycerin, a redox reaction starts. This reaction starts out really slow, but produces a lot of heat, so it will start to speed up bit by bit. As the potassium permanganate oxidises the sugar, it will speed up more and more until it finally starts to smoke and after that it will ignite.