Which of the following are used as catalysts in petroleum cracking?
- AOxides of phosphorus
- BOxides of carbon
- COxides of sulphur
- DOxides of lanthanoids
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Similar Questions
Match the following:
List-$I$ (Aquated Ion) List-$II$ (Colour) $A. Ni^{2+}$ $I. \text{Violet}$ $B. Fe^{3+}$ $II. \text{Blue}$ $C. Mn^{3+}$ $III. \text{Yellow}$ $D. V^{4+}$ $IV. \text{Red}$ $V. \text{Green}$
| List-$I$ (Aquated Ion) | List-$II$ (Colour) |
|---|---|
| $A. Ni^{2+}$ | $I. \text{Violet}$ |
| $B. Fe^{3+}$ | $II. \text{Blue}$ |
| $C. Mn^{3+}$ | $III. \text{Yellow}$ |
| $D. V^{4+}$ | $IV. \text{Red}$ |
| $V. \text{Green}$ |
Which of the following is amphoteric?
Easy
View SolutionWhich of the following statements regarding copper salts is not true?
Difficult
View SolutionAmphoteric oxide$(s)$ of $Mn$ is/are:
Medium
View Solution$A \xrightarrow{4 KOH, O_2} 2 B (Green) + 2 H_2O$
$3 B \xrightarrow{4 HCl} 2 C (Purple) + MnO_2 + 2 H_2O$
$3 C \xrightarrow{H_2O, KI} 2 A + 2 KOH + D$
In the above sequence of reactions,$A$ and $D$,respectively,are:
$3 B \xrightarrow{4 HCl} 2 C (Purple) + MnO_2 + 2 H_2O$
$3 C \xrightarrow{H_2O, KI} 2 A + 2 KOH + D$
In the above sequence of reactions,$A$ and $D$,respectively,are:
DifficultJEE MAIN 2019
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