Free Chemistry QBank for Polytechnic Exams

POLYTECHNIC | Chemistry QBank

Welcome Aspirants !!!

ScholarWorm welcomes our aspirants who are always hungry for more knowledge. We are here with our Free Chemistry QBank for Polytechnic Exams to help our students to practice regularly and perform at best of their ability in their exams.

Instruction to Create Question Set :-

1. The Test Paper is AI generated.

2. On clicking the button below the AI bot creates a set of 20 Questions from the pool of questions that is being updated regularly by our expert faculties.

3. A Timer is set for each Test Set, once time is up the AI will automatically submit the test.

4. New Question Set can be created by going backwards and repeating the above steps.

Note :- Number of Questions and Timer is not customizable in Free QBanks.

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#1. Colour of ferrous sulphate crystals

Green

Yellow

Blue

Orange

#2. _________ is most malleable metal.

#3. __________ is an allotrope of carbon which is hardest in nature.

Fullerance

Silicon Carbide

Diamond

Graphite

#4. Plaster of Paris (POP) is

CaSO4.¼H20

CaSO4.½H2O

CaSO4.2(H2O)

CaSO4.H2O

#5. When a metal oxide reacts with an acid, the products formed are

Only Water

Base + Water

salt

salt + Water

#6. pH of blood is

4.7

6.5

5.6

7.4

#7. Metalloide is

Magnesium

Iron

Silicon

Carbon

#8. Singing hair of nettle leaves inject _______ causing burning pain

Methanoic acid

Propanoic acid

Butanoic acid

Ethanoic acid

#9. The order of reactivity is

Al > Mg > Fe > Zn

Mg > Al > Zn > Fe

Al > Mg > Zn > Fe

Mg > Al > Fe > Zn

#10. The number of lone pair electrons present in the valence shell of central atom of water molecule is

#11. Gases evolved when sodium carbonate reacts with hydrocholoric acid

all of these

Hydrogen

Chlorine

Carbon dioxide

#12. The atomic number of sodium is

63.5 u

16 u

40 u

23 u

#13. M shell of chlorine contains _________ electrons.

#14. Esters react in the presence of acid or base to give alcohol and carboxylic acid is called

Esterification

Rancidity

Saphonification

Hydrolysis

#15. _________ does not react with cold water.

Calcium

Sodium

Potassium

Magnesium

#16. Our stomach produces __________acid which helps in digestion.

H2PO3

HCl

H2SO4

HNO3

#17. __________ acid is present in Tomato.

Citric

Methanoic

Oxalic

Tartaric

#18. During respiration ___________ combines with oxygen in cells and produces CO2 and water.

Galactose

Sucrose

Fructose

Glucose

#19. _________ is non-metal but it is lustrous.