Complete and Balance the Following Equation : Al + Naoh --> - Chemistry

Complete and balance the following equation :
Al + NaOH →

एका वाक्यात उत्तर

2Al + 2NaOH + 2H₂O → 2NaAlO₂ + 3H₂

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पाठ 7: Metallurgy - Exercise 3 [पृष्ठ १८१]

पाठ 7 Metallurgy
Exercise 3 | Q 4 | पृष्ठ १८१

State a reason why zinc is used in:

cosmetics?

From the metals: copper, iron, magnesium, sodium, and zinc, select a different metal in the case which does not react with dilute hydrochloric acid.

Give reason for the following:
Zinc is used in galvanization and dry cells.

Give reason for the following:
Galvanized metal ions should not be used for storing food.

Give composition and uses of the following alloys. Mention the reason for its use.
Stainless steel

Complete and balance the following equation:
Fe₂O₃ + → Al₂O₃ +

Name the ore of zinc containing its sulphide.

Answer the following question :
Write the constituents of electrolyte for the extraction of aluminum.

Explain the following term:

Ore

The ore which can be concentrated by magnetic separation.