Which of the following compounds is useful as a fertilizer?
- A$CaC_2$
- B$NaAlO_2$
- C$Ca(H_2PO_4)_2 \cdot H_2O + CaSO_4$
- DAll of the above
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What products are formed when $1 \ mol$ of calcium phosphide reacts with an excess of water?
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View SolutionMatch the average fundamental compounds with their proper percentage present in Portland cement.
Compound Percentage proportion $1. CaO$ $d. 50-60\%$ $2. Al_2O_3$ $a. 5-10\%$ $3. SO_3$ $b. 1-3\%$
| Compound | Percentage proportion |
| $1. CaO$ | $d. 50-60\%$ |
| $2. Al_2O_3$ | $a. 5-10\%$ |
| $3. SO_3$ | $b. 1-3\%$ |
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View SolutionNitrates of all metals are:
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View SolutionMatch the following compounds with their respective uses:
Compound Uses $1. CaCO_3$ $a.$ In purification of coal gas $2. Ca(OH)_2$ $b.$ As an antacid $3. CaO$ $c.$ In paper and textile industries $4. Na_2CO_3 \cdot 10H_2O$ $d.$ In glass and leather industries
| Compound | Uses |
|---|---|
| $1. CaCO_3$ | $a.$ In purification of coal gas |
| $2. Ca(OH)_2$ | $b.$ As an antacid |
| $3. CaO$ | $c.$ In paper and textile industries |
| $4. Na_2CO_3 \cdot 10H_2O$ | $d.$ In glass and leather industries |
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View SolutionMatch the following:List-$I$ List-$II$ $A$. Alkali metals $I$. $ns^2 np^6$ $B$. Alkaline earth metals $II$. $ns^1$ $C$. Halogens $III$. $ns^2 np^5$ $D$. Noble gases $IV$. $ns^2$
| List-$I$ | List-$II$ |
|---|---|
| $A$. Alkali metals | $I$. $ns^2 np^6$ |
| $B$. Alkaline earth metals | $II$. $ns^1$ |
| $C$. Halogens | $III$. $ns^2 np^5$ |
| $D$. Noble gases | $IV$. $ns^2$ |
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