MCQ
Which oxide of manganese is amphoteric
- ✓$Mn{O_2}$
- B$M{n_2}{O_3}$
- C$M{n_2}{O_7}$
- D$MnO$
✓
Answer
Correct option: A.
$Mn{O_2}$
a
(a)$Mn{O_2}$ forms amphoteric oxide due to intermediate oxidation state.
(a)$Mn{O_2}$ forms amphoteric oxide due to intermediate oxidation state.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Rate of a reaction can be expressed by Arrhenius equationas :
→$k=A\,e-^{E/RT}$
In this equation, $E$ represents
Which of the following bond has the most polar character
When an electric current is passed through acidulated water $112 ml $ of hydrogen gas at $N.T.P. $ collect at the cathode in $965$ seconds. The current passed, in amperes is
→Solubility of calcrum phosphate (molecular mass, M) in water is $\mathrm{W}_{\mathrm{g}}$ per $100 \mathrm{~mL}$ at $25^{\circ} \mathrm{C}$. Its solubility product at $25^{\circ} \mathrm{C}$ will beapproximately.
→In hydrogen atom, the de Broglie wavelength of an electron in the second Bohr orbit is $[$ Given that Bohr radius, $a_0 = 52.9 \;pm]$
→The electronic configuration of $Cu ( II )$ is $3 d^9$ whereas that of $Cu ( I )$ is $3 d^{10}$. Which of the following is correct?
→The $IUPAC$ name of (figure) is
→Which of the following alkane is synthesized from single alkyl halide by wurtz reaction ?
The amount of oxygen in $3.6\, moles$ of water is ............ $\mathrm{g}$
→Which of the following statements is not true for ionic compounds