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प्रश्न
Which non-metal has been placed in the reactivity series of metals?
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उत्तर
Hydrogen is the non-metal that has been placed in the reactivity series of metals because it loses electrons to form positive ions (H+) like metals.
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संबंधित प्रश्न
Write equations for the reactions of calcium and potassium with water.
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(b) Displacement
(c) Double displacement
(d) Decomposition
State whether the following statement is true or false:
Non-metals react with dilute acids to produce a gas which burns with a 'pop' sound.
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Write equation for the reaction of magnesium with oxygen.
Fill in the following blank with suitable word:
Magnesium liberates ............... gas on reacting with hot boiling water.
Fill in the following blank with suitable word:
Ordinary aluminium strips are not attacked by water because of the presence of a layer of ................. on the surface of aluminium.
Which of the following elements would yield a basic oxide.
Na, S, C, K, H
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(a) Na and K
(b) K and C
(c) Na and S
(d) K and P
The elements whose oxides can turn litmus solution blue are:
(a) carbon and sulphur
(b) sodium and carbon
(c) potassium and magnesium
(d) magnesium and sulphur
CuSO4(aq) + Fe(s) → FeSO4(aq) + Cu(s)
FeSO4(aq) + Zn(s) → ZnSO4(aq) + Fe(s)
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(c) MgSO4 (aq) + Fe (s) → FeSO4 (aq) + Mg (s)
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Rewrite the following statement by selecting the correct option.
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| Melting Point | High | Low | Low | High |
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