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Water and hydrogen peroxide illustrate t...

Water and hydrogen peroxide illustrate the law of

A

A. constant proportions

B

B.multiple proportions

C

C. isomorphism

D

D. reciprocal proportions

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The correct Answer is:
B
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ICSE-SOME BASIC CONCEPTS OF CHEMISTRY -OBJECTIVE (MULTIPLE CHOICE) TYPE QUESTIONS (CHOOSE THE CORRECT OPTION IN THE FOLLOWING QUESTIONS)
  1. The isotopes of an element have

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  2. A compound with empirical formula C2H5O has a vapour density of 45. Th...

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  3. Water and hydrogen peroxide illustrate the law of

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  4. The number of grams of H2SO4 required to dissolve 5 g of CaCO(3) is:

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  5. The mass of a mole of electrons is: 0.008 g 0.184 g 0.55 mg 1.673

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  6. The number of atoms in 0.004 g of magnesium is close to

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  7. Two samples of lead oxide were separately reduced to metallic lead by ...

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  8. Chemical equation is balanced according to the law of multiple proport...

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  9. The number of water molecules in one litre of water is:

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  10. The total number of electrons present in 18 mL of water (density of wa...

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  11. 18 g of water contain:

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  12. An oxide of metal M has 40% by mass of oxygen. Metal M has relative at...

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  13. The mass of an atom of oxygen is:

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  14. 1 mole of methane (CH4) contains

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  15. Two elements A (At. wt. 75) and B (At. wt. 16) combine to yield a comp...

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  16. The equivalent mass of MnSO4 is half of its molecular mass when it is ...

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  17. 5 mL of N HCI, 20 mL of N/2 H2SO4 and 30 mL of N/3 HNO3 are mixed tog...

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  18. 100 g of a solution of hydrochloric acid (sp.gr. 1.18) contains 36.5 g...

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  19. A sample of Na2CO3H2O weighing 0.62 g is added to 100 mL of 0.1 N H2SO...

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  20. 2.76 g of Ag2CO3 on being heated yields a residue weighing

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