Isolation of boron in very high purity is extremely difficult because of:

Assertion:The detection of neutrinos is extremely difficult . Reason : Neutrinos interact only very weakly with matter.

Cellulose has very high degree of hydrophilicity because of

Boron has an extremely high melting point because of

Boron has an extremely high melting point because of

High melting point of boron is due to its existence as

Boron and silicon of very high purity can be obtained through :

High purity copper metal is obtained by

High purity copper metal is obtained by

The ionization energy of boron is less than that of beryllium because:

Graphite is a soft solid lubricant extremely difficult to melt. The reason for this anomalous behaviour is that graphite