HSC Science कक्षा १२ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Chemistry

Bauxite has the composition

What are the differences between minerals and ores?

Give the uses of zinc.

Oxidation state of carbon in its hydrides

The stability of the +1 oxidation state increases in the sequence

Write a short note on anomalous properties of the first element of the p-block.

Describe briefly allotropism in p-block elements with specific reference to carbon.

Give one example for the following.

Prictogen

Give one example for the following.

Chalcogen

Write a note on the metallic nature of p-block elements.

Sc (Z = 21) is a transition element but Zinc (z = 30) is not because

Which of the following d-block element has half-filled penultimate d sub shell as well as half-filled valence sub shell?

Among the transition metals of 3d series, the one that has highest negative `("M"^(2+)/"M")` standard electrode potential is

Explain the oxidation states of 4d series elements.

Give the difference between double salts and coordination compounds.

Conjugate base for Bronsted acids H₂O and HF are ___________.

Which of the following fluro compounds is most likely to behave as a Lewis base?

Which of these is not likely to act as Lewis base?

Which of the following can act as Lowry – Bronsted acid as well as base?

What are Lewis acids and bases? Give two examples for each.