Chemistry
An amphoteric hydroxide having gelatinous white precipitate is ……………
- zinc hydroxide
- sodium hydroxide
- copper (II) hydroxide
- None of the above
Related Questions
The vapour density of carbon dioxide (C = 12 and O = 16) is ……………
- 32
- 16
- 44
- 22
The volume occupied by 1 mole of gas at STP is ……………
- 2.42 L
- 2.24 L
- 2.44 L
- 22.4 L
The element with the least electronegativity is :
- Lithium
- Carbon
- Boron
- Fluorine
A dry test tube containing lead nitrate is heated. Which of the following would be observed?
P. Brown fumes are given out.
Q. White coloured residue with yellow fumes are seen.
R. Yellow coloured residue is seen.
- Only P
- Only Q
- Only R and Q
- Both P and R