The hardest substance amongst the following is
The hardest substance amongst the following is
- A
$B{e_2}C$
- B
Graphite
- C
Titanium
- D
${B_4}C$
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- [AIPMT 1994]
Acedic strength of Boron trihalide are in order of
Acedic strength of Boron trihalide are in order of
A neutral molecule $XF_3$ has a zero dipole moment. The element $X$ is most likely
A neutral molecule $XF_3$ has a zero dipole moment. The element $X$ is most likely
- [AIIMS 2016]
Moissan boron is
Moissan boron is