The products formed when diborane is hydrolysed are
The products formed when diborane is hydrolysed are
Options
(a) B₂O₃ and H₃BO₃ (b) B₂O₃ only (c) H₃ BO₃ and H₂ (d) H₃BO₃ only
Correct Answer:
H₃ BO₃ and H₂
Explanation:
No explanation […]
S and Some P Block Elements
Germanium of very high purity is obtained by
Germanium of very high purity is obtained by
Options
(a) liquation (b) vapour phase refining (c) distilation (d) zone refining
Correct Answer:
zone refining
Explanation:
Metals of high purity are obtained by zone refining, […]
The element that does not show catenation among the following p-block elements is
The element that does not show catenation among the following p-block elements is
Options
(a) carbon (b) silicon (c) germanium (d) lead
Correct Answer:
lead
Explanation:
No explanation available. Be the first to […]
Reaction of diborane with ammonia gives initially
Reaction of diborane with ammonia gives initially
Options
(a) B₂H₆.NH₃ (b) Borazole (c) B₂H₆.3NH₃ (d) [BH₂(NH₃)₂]⁺ [BH₄]⁻
Correct Answer:
[BH₂(NH₃)₂]⁺ [BH₄]⁻
Explanation:
No explanation available. Be the first to write the explanation for […]
The anion, (Si₆O₁₈)¹²⁻ is present in
The anion, (Si₆O₁₈)¹²⁻ is present in
Options
(a) pyroxene (b) beryl (c) mica (d) albite
Correct Answer:
beryl
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
The number of carbon atoms in Buckminsterfullerene is
The number of carbon atoms in Buckminsterfullerene is
Options
(a) 50 (b) 350 (c) 60 (d) 70
Correct Answer:
60
Explanation:
Buckminsterfullerene has the formula C₆₀ and is made from interlocking hexagonal and […]
The main reason that SiCl₄ is easily hydrolysed as compared to CCl₄ is that
The main reason that SiCl₄ is easily hydrolysed as compared to CCl₄ is that
Options
(a) Si – Si bond is weaker (b) SiCl₄ can form hydrogen bonds (c) SiCl₄ is covalent (d) […]
The hardest substance amongst the following is
The hardest substance amongst the following is
Options
(a) Be₂C (b) graphite (c) titanium (d) B₄C
Correct Answer:
B₄C
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Inorganic graphite is
Inorganic graphite is
Options
(a) B₃N₃H₆ (b) B₃N₃ (c) SiC (d) Fe(CO)₅
Correct Answer:
B₃N₃
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
The element that does not form a monoxide is
The element that does not form a monoxide is
Options
(a) lead (b) tin (c) germanium (d) silicon
Correct Answer:
silicon
Explanation:
No explanation available. Be the first to write the explanation for […]