
Reaction of Zn(OH)₂ with NaOH produces
(A) Na₂ZnO₂
(B) ZnO
(C) Na₂O
(D) None of these
Answer
433.5k+ views
1 likes
Hint :Hydroxide of zinc Inorganic chemical compound Zn(OH)₂. Wülfingite (orthorhombic), ashoverite, and sweetite are three rare minerals that contain it (both tetragonal). Zinc hydroxide (and Zinc oxide) is amphoteric, like the hydroxides of other metals such as lead, aluminium, beryllium, tin, and chromium. As a result, it dissolves readily in a dilute solution of a strong acid, such as HCl, as well as an alkali solution, such as sodium hydroxide.
Complete Step By Step Answer:
Hydroxide of zinc Inorganic chemical compound Zn(OH)₂. Wülfingite (orthorhombic), ashoverite, and sweetite are three rare minerals that contain it (both tetragonal). Zinc hydroxide (and Zinc oxide) is amphoteric, like the hydroxides of other metals such as lead, aluminium, beryllium, tin, and chromium. As a result, it dissolves readily in a dilute solution of a strong acid, such as HCl, as well as an alkali solution, such as sodium hydroxide.
The inorganic compound sodium hydroxide, also known as lye or caustic soda, has the formula NaOH. It's a white ionic compound made up of sodium cations Na⁺ and hydroxide anions OH⁻.
This is an acid-base (neutralisation) reaction: NaOH is a base, and Zn(OH)₂ is an acid.
This is a complexation reaction, and the generated complex is Na₂[Zn(OH)₄].
If too much sodium hydroxide is added, the zinc hydroxide precipitate dissolves, leaving a colourless zincate ion solution.
This property can be used to detect zinc ions in solution, but it isn't unique because aluminium and lead compounds have similar properties. Unlike aluminium and lead hydroxides, zinc hydroxide forms a colourless, water-soluble ammine complex when exposed to excess aqueous ammonia.
Option (A) is correct answer.
Note :
If too much sodium hydroxide is added, the zinc hydroxide precipitate dissolves, leaving a colourless zincate ion solution.
This property can be used to detect zinc ions in solution, but it isn't unique because aluminium and lead compounds have similar properties. Unlike aluminium and lead hydroxides, zinc hydroxide forms a colourless, water-soluble ammine complex when exposed to excess aqueous ammonia.
Complete Step By Step Answer:
Hydroxide of zinc Inorganic chemical compound Zn(OH)₂. Wülfingite (orthorhombic), ashoverite, and sweetite are three rare minerals that contain it (both tetragonal). Zinc hydroxide (and Zinc oxide) is amphoteric, like the hydroxides of other metals such as lead, aluminium, beryllium, tin, and chromium. As a result, it dissolves readily in a dilute solution of a strong acid, such as HCl, as well as an alkali solution, such as sodium hydroxide.
The inorganic compound sodium hydroxide, also known as lye or caustic soda, has the formula NaOH. It's a white ionic compound made up of sodium cations Na⁺ and hydroxide anions OH⁻.
This is an acid-base (neutralisation) reaction: NaOH is a base, and Zn(OH)₂ is an acid.
This is a complexation reaction, and the generated complex is Na₂[Zn(OH)₄].
If too much sodium hydroxide is added, the zinc hydroxide precipitate dissolves, leaving a colourless zincate ion solution.
This property can be used to detect zinc ions in solution, but it isn't unique because aluminium and lead compounds have similar properties. Unlike aluminium and lead hydroxides, zinc hydroxide forms a colourless, water-soluble ammine complex when exposed to excess aqueous ammonia.
Option (A) is correct answer.
Note :
If too much sodium hydroxide is added, the zinc hydroxide precipitate dissolves, leaving a colourless zincate ion solution.
This property can be used to detect zinc ions in solution, but it isn't unique because aluminium and lead compounds have similar properties. Unlike aluminium and lead hydroxides, zinc hydroxide forms a colourless, water-soluble ammine complex when exposed to excess aqueous ammonia.
Latest Vedantu courses for you
Grade 8 | CBSE | SCHOOL | English
Vedantu 8 CBSE Pro Course - (2025-26)
School Full course for CBSE students
₹45,300 per year
Recently Updated Pages
Master Class 11 Accountancy: Engaging Questions & Answers for Success

Master Class 11 Social Science: Engaging Questions & Answers for Success

Master Class 11 Economics: Engaging Questions & Answers for Success

Master Class 11 Physics: Engaging Questions & Answers for Success

Master Class 11 Biology: Engaging Questions & Answers for Success

Class 11 Question and Answer - Your Ultimate Solutions Guide

Trending doubts
Explain why it is said like that Mock drill is use class 11 social science CBSE

The non protein part of an enzyme is a A Prosthetic class 11 biology CBSE

Which of the following blood vessels in the circulatory class 11 biology CBSE

What is a zygomorphic flower Give example class 11 biology CBSE

1 ton equals to A 100 kg B 1000 kg C 10 kg D 10000 class 11 physics CBSE

The deoxygenated blood from the hind limbs of the frog class 11 biology CBSE
