Which of the following compounds contain polyatomic ions?
$NaOH, NaCl, Na_{2}O, NaNO_{3}$

  • A
    $NaOH, NaCl$
  • B
    $NaCl, Na_{2}O$
  • C
    $NaOH, NaNO_{3}$
  • D
    $Na_{2}O, NaNO_{3}$

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Similar Questions

Calculate the mass of $20$ water molecules.

Classify each of the following on the basis of their atomicity:
$(a) F_2$
$(b) NO_2$
$(c) N_2O$
$(d) C_2H_6$
$(e) P_4$
$(f) H_2O_2$
$(g) P_4O_{10}$
$(h) O_3$
$(i) HCl$
$(j) CH_4$
$(k) He$
$(l) Ag$

Raunak took $5 \, mol$ of carbon atoms in a container and Krish also took $5 \, mol$ of sodium atoms in another container of the same weight. $(a)$ Whose container is heavier? $(b)$ Whose container has a greater number of atoms?

Calculate the number of molecules in $90$ grams of water.

The atomic numbers of three elements $A, B$ and $C$ are $9, 10$ and $13$ respectively. Which of them will form a cation?

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