Give Scientific Reasons:
2. If a piece of aluminium foil is dropped in a test tube containing fresh
solution of sodium hydroxide, how would you check which gas is evolved
Answers
Answer:
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please tell me what is the equation for the following statements is the equation for the following statements is the equation for the following statements is the equation for the following statements is the equation for the following statements is the equation for the following statements is the equation
Explanation:
When zinc is added in sodium solution sodium zincate (Na
2
ZnO
2
) is formed along with hydrogen gas.
2NaOH+Zn→Na
2
ZnO
2
+H
2
When burning splint is held near the evolved it continues burning with pop sound indicating evolution of Hydrogen gas.
Same metal i.e Zn reacts with strong acid H
2
SO
4
to give ZnSO
4
Zn+H
2
SO
4
→ZnSO
4
+H
2
↑
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