Match the following. [5] A B i) Nitre a) NaOH ii) White vitriol b) MgSO4. 7H2O iii) Green vitriol c) KNO3 iv) Caustic soda d) FeSO4. 7H2O v) Epsom Salt e) Zn SO4.
Answers
Match the following:
a) NaOH - iv) Caustic soda
➛ Sodium hydroxide is known as caustic soda.
- It is a inorganic compound.
- It is used as a deliquescent agent because of it's phenomena delinquency.
b) MgSO₄. 7H₂O - v) Epsom Salt
➛ Magnesium sulphate is crystallized from an aqueous solution, the crystals have the formula MgSO₄. 7H₂O. 7 water molecules are loosely attached to it. Dot ( . ) shows water molecules loosely attached.
c) KNO₃ - i) Nitre
➛ KNO₃ is potassium nitrate or nitre is an ionic salt of potassium which has crystalline form.
d) FeSO₄. 7H₂O - iii) Green vitriol
➛ Iron (II) sulphate crystallizes from an aqueous solution as FeSO₄. 7H₂O. These water molecules appear in the same number every time and are called water of crystallization of a substance. Such substance is called hydrate.
e) ZnSO₄. 7H₂O - ii) White vitriol
➛ Zinc sulphate is crystallized from an aqueous solution, the crystals have the formula ZnSO₄. 7H₂O. Water molecules are associated with the substance in a crystal and forming a part of crystalline structure. It is also hydrate.
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Answer:
Match the following:
a) NaOH - iv) Caustic soda
➛ Sodium hydroxide is known as caustic soda.
It is a inorganic compound.
It is used as a deliquescent agent because of it's phenomena delinquency.
b) MgSO₄. 7H₂O - v) Epsom Salt
➛ Magnesium sulphate is crystallized from an aqueous solution, the crystals have the formula MgSO₄. 7H₂O. 7 water molecules are loosely attached to it. Dot ( . ) shows water molecules loosely attached.
c) KNO₃ - i) Nitre
➛ KNO₃ is potassium nitrate or nitre is an ionic salt of potassium which has crystalline form.
d) FeSO₄. 7H₂O - iii) Green vitriol
➛ Iron (II) sulphate crystallizes from an aqueous solution as FeSO₄. 7H₂O. These water molecules appear in the same number every time and are called water of crystallization of a substance. Such substance is called hydrate.
e) ZnSO₄. 7H₂O - ii) White vitriol
➛ Zinc sulphate is crystallized from an aqueous solution, the crystals have the formula ZnSO₄. 7H₂O. Water molecules are associated with the substance in a crystal and forming a part of crystalline structure. It is also hydrate.
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Explanation:
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