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If the empirical mass of the formula PQ(...

If the empirical mass of the formula `PQ_(2)` is 10 and the Relative Molecular Mass is 30, then the molecular formula will be:

A

`PQ_(2)`

B

`P_(3)Q_(2)`

C

`P_(6)Q_(3)`

D

`P_(3)Q_(6)`

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ICSE-QUESTION PAPER 2022 TERM 1-MULTIPLE CHOICE QUESTIONS
  1. Element with an atomic number 19 will:

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  2. Which of the following has two sets of lone pair of electrons in them ...

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  3. If the empirical mass of the formula PQ(2) is 10 and the Relative Mole...

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  4. Which of the following is a tribasic acid?

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  5. If a solution of an electrolyte mixture has calcium ions, cupric ions,...

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  6. Which of the following ions will readily discharge at the anode durin...

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  7. If the empirical formula of a compound of CH and its vapour density is...

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  8. Aqueous solution of Cupric chloride forms a deep blue solution on addi...

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  9. Which statement about conduction of electricity is correct?

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  10. If an element has low ionization potential, then it is likely to be a:

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  11. Which electron arrangement for the outer shell electrons in a covalent...

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  12. The products formed when an acid reacts with a base is :

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  13. In the circuit below, the lamp lights up What could X be ?

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  14. Which one of the following is a non metallic cation ?

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  15. Type of bonding present in hydrogen chloride :

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  16. How does the metallic and non-metalic character vary on moving from le...

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  17. The aqueous solution of the following compounds which contains both io...

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  18. The basic oxide which is an alkali :

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  19. If the pH of solution is '2' , then the solution is a

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  20. The acidity of aluminium hydroxide is :

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