Find the total number of atoms present in one $SO_{4}^{2-}$ ion.
- A$4$
- B$5$
- C$6$
- D$7$
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Similar Questions
Which of the following represents a correct chemical formula? Name it.
Medium
View SolutionComplete the following crossword puzzle by using the names of the chemical elements based on the data provided in the table.
Across Down $2$. The element used by Rutherford during his $\alpha$-scattering experiment. $1$. $A$ white lustrous metal used for making ornaments and which tends to get tarnished black in the presence of moist air. $3$. An element which forms rust on exposure to moist air. $4$. Both brass and bronze are alloys of this element. $5$. $A$ very reactive non-metal stored under water. $6$. The metal which exists in the liquid state at room temperature. $7$. Zinc metal when treated with dilute hydrochloric acid produces a gas of this element which when tested with a burning splinter produces a pop sound. $8$. An element with the symbol $Pb$.
| Across | Down |
|---|---|
| $2$. The element used by Rutherford during his $\alpha$-scattering experiment. | $1$. $A$ white lustrous metal used for making ornaments and which tends to get tarnished black in the presence of moist air. |
| $3$. An element which forms rust on exposure to moist air. | $4$. Both brass and bronze are alloys of this element. |
| $5$. $A$ very reactive non-metal stored under water. | $6$. The metal which exists in the liquid state at room temperature. |
| $7$. Zinc metal when treated with dilute hydrochloric acid produces a gas of this element which when tested with a burning splinter produces a pop sound. | $8$. An element with the symbol $Pb$. |
What are ionic and molecular compounds? Give examples.
Medium
View SolutionState whether the following statement is true or false:
Oxygen molecules exist in the form of three molecules as $O_{2}$,$O_{3}$,and $O_{4}$.
Oxygen molecules exist in the form of three molecules as $O_{2}$,$O_{3}$,and $O_{4}$.
Easy
View SolutionYou are provided with a fine white-coloured powder which is either sugar or salt. How would you identify it without tasting?
Medium
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