Home
Class 10
CHEMISTRY
Assertion : atomic mass of aluminium ...

Assertion : atomic mass of aluminium is 27
Reason : an atom of aluminium is 27 times heavier than `(1)/(12 ^(th))` of the mass of the C- 12 atom .

A

A and R are correct . R explains the A .

B

A is correct , R is wrong .

C

A is wrong , R is correct

D

A and R are correct , R doesn't explains A .

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • ATOMS AND MOLECULES

    SURA PUBLICATION|Exercise TEXTBOOK EVALUATION ( SHORT ANSWER QUESTIONS ) :|6 Videos

  • ATOMS AND MOLECULES

    SURA PUBLICATION|Exercise TEXTBOOK EVALUATION ( LONG ANSWER QUESTIONS ) :|6 Videos

  • ATOMS AND MOLECULES

    SURA PUBLICATION|Exercise TEXTBOOK EVALUATION ( STATE WHETHER THE FOLLOWING STATEMENTS ARE TRUE OR FALSE IF FALSE , CORRECT THE STATEMENT ):|5 Videos

  • CARBON AND ITS COMPOUNDS

    SURA PUBLICATION|Exercise ADDITIONAL QUESTION & ANSWER ( HIGHER ORDER THINKING SKILLS (HOTS) )|6 Videos

Similar Questions

Explore conceptually related problems

(1)/(12) of the mass of carbon 12 atom is......

The mass of one C atom is :

Define Average atomic mass ?

Assertion : atomic masses of elements are whole numbers . Reason : atoms of the same element exist as isotopes .

Define relative atomic mass .

The mass of 1 atom of nitrogen is