The correct no. of lone pairs on the central atom of compounds XeF2, XeF4 & XeF6are respectively-
The no. of s bonds in the compound P4O10 is -
The number of hydrogen atoms (s) attached to phosphorus atom in hypophosphorous acid is –
What products are expected from the disproportionation reaction of hypochlorous acid –
Which one of the following statements regarding helium is incorrect
Helium is twice as heavy as hydrogen; its lifting power is 92% of that of hydrogen. Helium has the lowest melting and boiling point of any element which makes liquid helium an ideal coolant for many extremely low temperature application such as super conducting magnet and cryogenic research where temperature close to absolute zero are needed.
Which one of the following reactions of Xenon compounds is not feasible ?
This reaction is not feasible because the products again react to give reactants back. All the xenon fluorides easily undergo hydrolysis and give xenon oxides but the opposite is not possible.
In which of the following arrangements, the sequence is not strictly according to the property written against it ?
Identify the incorrect statement from the following -
The number of types of bonds between two carbon atoms in calcium carbide is -
CaC2 has a combination of bonds. It is an ionic lattice that has Ca(2+) cations and acetylide C2(2-) anions. Within each C2(2-), there is a triple bond between the 2 C atoms, consisting of 1 sigma and 2 pi bonds.