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Chemistry 1488 MCQs [All-Courses]

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Our content covers Basic Chemistry, Atomic Structure, Periodic Table, Chemical Reactions, Acids & Bases, Organic Chemistry, and everyday chemical concepts.

The heaviest subatomic particle among the following is_________?

A Electron

B Proton

C Neutron

D All have mass

Review Detailed Answer

Correct Answer: Neutron

Carbon,Diamond and Graphite are together called:___________?

A Allotrope

B Isomers

C Isomorphs

D Isotopes

Review Detailed Answer

Correct Answer: Allotrope

The salt that gives the aqueous solution with pH less than 7, is called as____________?

A Basic salt

B Acidic salt

C Neutral salt

D Amphoteric salt

Review Detailed Answer

Correct Answer: Acidic salt

According to Journal of Biological Chemistry 158, human brain and heart are composed of ________water?

A 75%

B 81%

C 73%

D 89%

Review Detailed Answer

Correct Answer: 73%

Octane number is 0 value for ___________?

A iso-octane

B n-hexane

C n-heptane

D iso-heptane

Review Detailed Answer

Correct Answer: n-heptane

Which is artificial manmade fiber?

A Boron

B Saffron

C Rayon

D None of these

Review Detailed Answer

Correct Answer: Rayon

The organic compound used as antiknock agent in petroleum is____________?

A (C2H5 )4Pb

B TNT

C CH MgBr3

D C2H5 )2Hg

Review Detailed Answer

Correct Answer: (C2H5 )4Pb

The solution remaining after the formation of crystals is called ___________________?

A Mother liquor

B Dilute solution

C Residue

D both A & B

Review Detailed Answer

Correct Answer: Mother liquor

The petrol having octane number 80 has ____________?

A 20% n- heptane + 80% iso-octane

B 80% n- heptane + 20% iso-octane

C 20% n- heptane + 80% n-octane

D 80% n-heptane + 20% n- octane

Review Detailed Answer

Correct Answer: 20% n- heptane + 80% iso-octane

When Ammonia is used as a refrigerant in vapour compression cycle?

A Cu Tubing used

B Steel tubes used

C Both a & b

D Material does not effect by refrigerant

Review Detailed Answer

Correct Answer: Steel tubes used

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Chemistry 1488 MCQs [All-Courses]

All Topics 1488

All Topics 1488

The heaviest subatomic particle among the following is_________?

Carbon,Diamond and Graphite are together called:___________?

The salt that gives the aqueous solution with pH less than 7, is called as____________?

According to Journal of Biological Chemistry 158, human brain and heart are composed of ________water?

Octane number is 0 value for ___________?

Which is artificial manmade fiber?

The organic compound used as antiknock agent in petroleum is____________?

The solution remaining after the formation of crystals is called ___________________?

The petrol having octane number 80 has ____________?

When Ammonia is used as a refrigerant in vapour compression cycle?