TS EAMCET · Chemistry · p Block Elements (Group 13 & 14)
Which of the following statements is/are correct for group 13 elements? A. Al reacts with dil. \(\mathrm{HCl}\) to liberate \(\mathrm{H}_2\) gas B. Al reacts with conc. \(\mathrm{HNO}_3\) to liberate \(\mathrm{H}_2\) gas C. Boron reacts with only acids to liberate \(\mathrm{H}_2\) gas D. Anhydrous \(\mathrm{AlCl}_3\) reacts with moisture to liberate \(\mathrm{H}_2\) gas
- A B, C, D
- B A, B, D
- C A, C
- D A
Answer & Solution
Correct Answer
(D) A
Step-by-step Solution
Detailed explanation
A. When \(\mathrm{Al}\) reacts with dil. \(\mathrm{HCl}\), it liberates \(\mathrm{H}_2\) gas. \[ 2 \mathrm{Al}+6 \mathrm{HCl}\left(\text { dil.) } \longrightarrow 2 \mathrm{AlCl}_3+3 \mathrm{H}_2\right. \] B. When Al reacts with conc. \(\mathrm{HNO}_3\) than it liberates NO gas.…
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