CBSE 11th Standard Chemistry Subject The p-block Elements Ncert Exemplar 3 Mark Questions With Solution 2021
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CBSE 11th Standard Chemistry Subject The p-block Elements Ncert Exemplar 3 Mark Questions With Solution 2021
11th Standard CBSE
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Reg.No. :
Chemistry
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Three pairs of compounds are given below, Identify that compound in each of the pairs which has group 13 element in more stable oxidation state. Give reason for your choice. State the nature of bonding also.
AlCl3, AlCl.(a) -
Three pairs of compounds are given below, Identify that compound in each of the pairs which has group 13 element in more stable oxidation state. Give reason for your choice. State the nature of bonding also.
InCl3, InCl(a) -
A tetravalent element forms monoxide and dioxide withoxygen. When air is passed over heated element(1273 K), Producer gas is obtained. Monoxide of the element is powerful reducing agent and reduces ferric oxide to iron. Identify the element and write formulas of its monoxide and dioxide.
Write chemical equations for the formation of prodecur gas and reduction of ferric oxide with the monoxide.(a) -
Identify the compounds A, X and Z in the following reactions,
\(A+2HCI+5{ H }_{ 2 }O\rightarrow 2NaCl+X\)
\(X \ \xrightarrow [ \Delta ]{ 370K } HBO_{ 2 }\xrightarrow [ \Delta ]{ >370K } Z\)(a) -
Identify the compounds A, X and Z in the following reactions,
\(Z+3LiAlH_{ 4 }\rightarrow X+3LiF+3AlF_{ 3 }\)
\( X+6{ H }_{ 2 }O\rightarrow Y+6{ H }_{ 2 }\)
\(X+3O_{ 2 }\underrightarrow { \Delta } B_{ 2 }O_{ 3 }+3{ H }_{ 2 }O\)(a)
