What is heavy water, and state two of its uses.
Hydrogen
Original Khojo Papers practice question — not from a past board paper.
Ionic or saline hydrides, formed with the strongly electropositive s-block metals, such as sodium hydride. Covalent or molecular hydrides, formed with the p-block elements, such as methane and ammonia. Metallic or interstitial hydrides, formed with many d-block metals, such as palladium hydride.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
The ionic hydrides contain the H− ion and are strong reducing agents.
From the same topic and chapter, at a similar level.
What is heavy water, and state two of its uses.
Hydrogen
Why is hydrogen peroxide stored in dark plastic bottles?
Hydrogen
Why is the position of hydrogen in the periodic table anomalous?
Hydrogen
What is hard water? Distinguish between temporary and permanent hardness and state how each is removed.
Hydrogen
State Hund's rule and the Aufbau principle.
Structure of Atom
A compound contains 40% carbon, 6.7% hydrogen and 53.3% oxygen. Its molar mass is 180 g. Find its empirical and molecular formulae.
Some Basic Concepts of Chemistry