In diborane the two H-B-H angles are nearly
In diborane the two H-B-H angles are nearly Options (a) 60⁰,120⁰ (b) 95⁰,120⁰ (c) 95⁰,150⁰ (d) 120⁰,180⁰ Correct Answer: 95⁰,120⁰Explanation:No…
8 years ago
Questions
Hardest compound of boron is
Hardest compound of boron is Options (a) Magnesium boride (b) aluminium boride (c) boron nitride (d) boron carbide Correct Answer:…
8 years ago
Which of the following is the least stable and its existence is doubtful
Which of the following is the least stable and its existence is doubtful Options (a) SnI₄ (b) CI₄ (c) PbI₄…
8 years ago
Which of the following glasses is the most heat resistant?
Which of the following glasses is the most heat resistant? Options (a) Bottle glass (b) Flint glass (c) Water glass…
8 years ago
Which of the following shows bond in silicone?
Which of the following shows bond in silicone? Options (a) Si - C - Si - C - Si (b)…
8 years ago
Aluminium deposited vapours on glass forms a good mirror essentially because
Aluminium deposited vapours on glass forms a good mirror essentially because Options (a) it has better shine than Ag (b)…
8 years ago
Aluminium oxide is not reduced by chemical reaction since
Aluminium oxide is not reduced by chemical reaction since Options (a) reducing agent contaminate (b) the process pollute the environment…
8 years ago
Pb + Conc.HNO₃ gives
Pb + Conc.HNO₃ gives Options (a) Pb(NO₃)₂ + NO₂ (b) PbNO₃ + NO (c) Pb(NO₃)₄ + NO₃ (d) Pb(NO₃)₃ +…
8 years ago
The lusture of a metal is due to
The lusture of a metal is due to Options (a) its chemical inertness (b) its high polishing (c) its high…
8 years ago
Which of the following is true for diamond
Which of the following is true for diamond Options (a) diamond is a bad conductor of heat (b) diamond is…
8 years ago