Advertisements
Advertisements
Question
Why interstitial hydrides have a lower density than the parent metal?
Solution
- d block elements form metallic or interstitial hydrides, on heating with dihydrogen under pressure.
- Hydrogen atoms being small in size occupy some in the metallic lattice producing distortion without any change in its type.
- The densities of these hydrides are lower than those of metals from which they are formed since the crystal lattice expands due to the inclusion of dihydrogen.
APPEARS IN
RELATED QUESTIONS
Ionic hydrides are formed by ________.
Non-stoichiometric hydrides are formed by __________.
The hybridisation of oxygen atom is H2O and H2O2 are, respectively
Discuss the three types of Covalent hydrides.
Predict which of the following hydrides is a gas on a solid
- HCl
- NaH
Give your reason.
Write the expected formulas for the hydrides of 4th-period elements. What is the trend in the formulas? In what way the first two members of the series different from the others?
NH3 has an exceptionally high melting point and boiling point as compared to those of the hydrides of the remaining element of group 15 - Explain.
How do you expect the metallic hydrides to be useful for hydrogen storage?
Which of the following hydrides are deficient in hydrogen?
