Q. 23.8( 42 Votes )
How can you explain higher stability of BCl3 as compared to TlCl3 ?
Thallium and boron belong to group 13 of the periodic table and + 1 oxidation state becomes more stable on moving down the group. Boron is more stable than thallium because + 3 state of thallium is highly oxidizing and it reverts back to more stable + 1 state.
Rate this question :
A mixture of dilute NaOH and aluminium pieces is used to open drain.NCERT - Chemistry Part-II
Explain the following reactions
(a) Silicon is heated with methyl chloride at high temperature in the presence of copper;
(b) Silicon dioxide is treated with hydrogen fluoride;
(c) CO is heated with ZnO;
(d) Hydrated alumina is treated with aqueous NaOH solution.NCERT - Chemistry Part-II
Aluminium alloys are used to make aircraft body.NCERT - Chemistry Part-II
When metal X is treated with sodium hydroxide, a white precipitate (A) is obtained, which is soluble in excess of NaOH to give soluble complex (B). Compound (A) is soluble in dilute HCl to form compound (C). The compound (A) when heated strongly gives (D), which is used to extract metal. Identify (X), (A), (B), (C) and (D). Write suitable equations to support their identities.NCERT - Chemistry Part-II
Aluminium trifluoride is insoluble in anhydrous HF but dissolves on addition of NaF. Aluminium trifluoride precipitates out of the resulting solution when gaseous BF3 is bubbled through. Give reasons.NCERT - Chemistry Part-II
What are electron deficient compounds? Are BCl3 and SiCl4 electron deficient species? Explain.NCERT - Chemistry Part-II
Suggest reasons why the B–F bond lengths in BF3 (130 pm) and BG4– (143 pm) differ.NCERT - Chemistry Part-II