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Assertion (A): The atomic mass of magnes...

Assertion (A): The atomic mass of magnesium is 24.
Reason ( R): Magnesium atom is 24 times heavier than that of `1//12` of mass of carbon.

A

A and R are true.A is supported by R

B

A and R are true , A is not supported by R

C

A and R are false

D

A is true but R is false

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VGS PUBLICATION-BRILLIANT-ATOMS AND MOLECULES-OBJECTIVE TYPE QUESTION
  1. Which of the following statement is not given by Dalton? Statement (A)...

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  2. Who is correct? Srinu: Elements are made up of atoms. Mohan: Atoms...

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  3. Assertion (A): The atomic mass of magnesium is 24. Reason ( R): Magn...

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  4. Assertion (A): Atomic mass has no units. Reason ( R): Atomic mass is...

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  5. An iron rod changed into iron oxide by rusting. Guess how the weights ...

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  6. In the experiment of “To prove law of conservation of mass”, Manoj fou...

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  7. CO:1:1::CO2:……………?

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  8. Molecules in water is H2O then molecules in the Hydrogen is

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  9. Why did symbol of copper taken as 'Cu'?

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  10. Statement (A) : Symbol of carbon is ‘C’ whereas symbol of calcium is ‘...

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  11. Generally all inert gases like , He,Ne,Ar,Kr,Xe are available as monoa...

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  12. IF 'x^(-1)' and Na'x' then 'x' may be

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  13. The valencies of 'Mg' and 'O' are……..respectively in MgO.

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  14. 'X2 Y','X' H 'Y', 'X' OH Guess X and Y.

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  15. By using Ag^+,Cl^-,Na^+,OH^- How many substance can be formed?

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  16. Molar mass of molecule x= 2 gr Molar mass of molecule y= 32 gr Mol...

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  17. No. of molecules in 44 grams of CO2 is equal to

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  18. In this experiment which gas is produced?

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  19. Law of conservation of mass was proposed by

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  20. Law of conservation of mass was experimentally verified by

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