Home
Class 11
CHEMISTRY
Statement-1 : Atomic mass of sodium is 2...

Statement-1 : Atomic mass of sodium is 23u
Statement-2 : An atom of sodium is 23 times heavier than atom of C-12 isotope

A

Statement 1 is true, statement 2 is also true , statement 2 is the correct explanation of statement 1.

B

Statement 1 is true, statement 2 is also true , statement 2 is not the correct explanation of statement 2

C

Statement 1 is true, statement 2 is false

D

Statement 1 is fale, statement 2 is true

Text Solution

Verified by Experts

The correct Answer is:
C
1 atom of sodium is 23 times heavier than 1/12 of an atom of C-12 istope.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOLE CONCEPT

    DINESH PUBLICATION|Exercise Matrix-Match|4 Videos

  • MOLE CONCEPT

    DINESH PUBLICATION|Exercise MCQ|4 Videos

  • HYDROGEN

    DINESH PUBLICATION|Exercise LONG|1 Videos

  • NOMENCLATURE OF ORGANIC COMPOUNDS

    DINESH PUBLICATION|Exercise MCQs|13 Videos

Similar Questions

Explore conceptually related problems

An atom of sulphur is __ times heavier than an atom of carbon.

The atomic mass of sodium is 23 . The gram-atomic mass of sodium is ………….

Knowledge Check

  • Assertion. Atomic mass of sodium is 23 u. Reason. An atom of sodium is 23 times heavier than an atom of carbon-12 isotope.

    A
    If both assertion and reason are true, and reason is the true explanation of the assertion.
    B
    If both assertion and reason are true, but reason is not the true explanation of the assetion.
    C
    If assertion is true, but reason if false
    D
    If both assertion and reason are false.

  • Assertion : Atomic mass of Na is 23. Reason : An atom of sodium is 23 times heavier than 1/12th mass of C-12 isotope.

    A
    If both Assertion & Reason are true and the reason is the correct explanation of the assertion.
    B
    If both Assertion & Reason are true but the reason is not the correct explanation of the assertion.
    C
    If Assertion is true statement but Reason is false.
    D
    If both Assertion and Reason are false statements.

  • Assertion : Atomic mass of calcium is 40 u Reason : An atom of calcium is 40 times heavier than an atom of carbon with mass 12 u.

    A
    If both assertion and reason are correct and reason is correct explanation for assertion
    B
    If both assertion and reason are correct but reason is not correct explanation for assertion
    C
    If assertion is correct but reason is incorrect
    D
    If both assertion and reason are incorrect

    • Similar Questions

    Explore conceptually related problems

    If the atomic mass of sodium is 23 , the number of moles in 46gm of sodium is:

    Assertion (A): Atomic mass of potassium is 39. Reason (R ): An atom of postassium is 39 times heavier than 1//2th of the mass of carbon atom (C^(12)) .

    Assertion : Atomic mass of aluminium is 27. Reason : An atom of aluminium is 27 times heavier than 1/12th of the mass of carbon-12 atom.

    Assertion : Atomic mass of aluminium is 27. Reason : An atom of aluminium is 27 times heavier than 1/12th of the mass of carbon-12 atom.

    The atomic mass of sodium is 23 . The number of moles in 46 g of sodium is

    Home
    Profile