One Nanometre is

(a)

10^-7 metre

(b)

10^-8 metre

(c)

10^-6 metre

(d)

10^-9 metre

The antibiotic Penicillin is obtained from ___________ 

(a)

plant

(b)

microorganism

(c)

animal

(d)

sunlight

1% solution of Iodoform is used as

(a)

antipyretic

(b)

antimalarial

(c)

antiseptic

(d)

antacid

The cathode of an electrochemical reaction involves ____________

(a)

oxidation

(b)

reduction

(c)

neutralisation

(d)

catenation

The age of a dead animal can be determined by using an isotope of ____________

(a)

carbon

(b)

iodine

(c)

phosphorous

(d)

oxygen

Which of the following does not contain natural dyes?

(a)

Potato

(b)

Beetroot

(c)

Carrot

(d)

Turmeric

This type of food protect us from deficiency diseases.

(a)

Carbohydrates

(b)

Vitamins

(c)

Proteins

(d)

Fats

Radiochemistry deals with

(a)

oxidants

(b)

batteries

(c)

isotopes

(d)

nanoparticles

The groups responsible for the colour of an organic compound is called

(a)

isotopes

(b)

auxochrome

(c)

chromogen

(d)

chromophore

Chlorinated hydrocarbons are used as

(a)

fertilizers

(b)

pesticides

(c)

food colourants

(d)

preservatives

____________ is an electrochemical cell which converts electrical energy into chemical change(Reaction).

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Electrolytic cell

Painkiller drugs are called ___________

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Analgesics

Aspirin is an _____________

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Analgesic and Antipyretic

____________, ____________ and __________ are macronutrients required for plant growth.

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Nitrogen, phosphorous, potassium

_____________ is a chemical used in finger print analysis.

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Ninhydrin

Antipyretics

(1)

Fever

Corrosion prevention

(2)

Iodine -131

Hyperthyroidism

(3)

Electroplating

Nanoparticle

(4)

Cancer cell identification

Nanorobotics

(5)

Large surface area

Draw the cell diagram of Daniel cell. Give its reactions.

Explain the types of dyes based on their method of application.

Name various food additives and explain their functions.

Batteries that are used in mobile phone can be recharged. Likewise, can you recharge the batteries used in watches? Justify your answer.

Sudha met with a fire accident. What kind of drug(s), she must take?

The soil pH of a crop land is 5. What kind of fertilizers should be used in that land?