Trying to find the right answer to this..

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

The p-Block Elements

Short Answer Type

561. Why do noble gases have comparatively large atomic sizes?

276 Views

Long Answer Type

562. List the uses of neon and argon gases.

288 Views

Short Answer Type

563. State reasons for each of the following happenings:
(i) Sulphur vapour exhibits some paramagnetism.
(ii) Unlike phosphorus nitrogen shows little tendency for catenation.

193 Views

564. Give reasons for the following:
CN^– ion is known but CP^– is not known.

233 Views

565. Give reasons for the following:
NO₂ demerises to form N₂O₄

287 Views

566. Give reasons for the following:
ICl is more reactive than I-I

166 Views

567. SF₆ is a well known compond but SCl₆ is not known. Explain?

SF₆ is a well known compound but SCl₆ not this is because of the electronegtivity and the size of Chlorine.
Sulphur atom has a very small size. Therefore, six chlorine atoms can not be linked with an atom of sulphur whereas six fluorine atoms can be linked because of smaller size. Moreover, chlorine being less electronegative than fluorine can not cause the promotion of electrons in the vacant d-orbitals as effectively as done by fluorine because of its higher electronegativity.

221 Views