Elements X and Y have electronic configurations 1s\(^2\)2...
Elements X and Y have electronic configurations 1s\(^2\)2s\(^2\)2p\(^4\) and 1s\(^2\)2s\(^2\)2p\(^2\)3s\(^6\)3p\(^1\) respectively. When they combine, the formula of the compound formed is?
XY
YX
X2Y3
Y2X3
Correct answer is D
\(\frac{\text{Element X}}{1s^22s^21p^4}\)
Valency of X is 2
\(\frac{\text{Element Y}}{1s^22s^22p^63s^23P^1}\)
valency of Y is 3
There is an exchange of valency when a compound is being formed. Hence, we have Y\(_2\)X\(_3\)
When ethanol is heated with excess concentrated sulphuric acid, the ethanol is? ...
The drying agent suitable for drying ammonia is ...
A gas that is collected by upward delivery is likely to be ...
The inherited traits of an organism are controlled by? ...
Vulcanization involve the removal of ...
An example of a secondary amine is? ...
Which of the following compounds is an example of an electrovalent bond? ...
The 25°C evaporation of a 100 cm\(^{3}\) solution of K\(_{2}\)CO\(_{3}\) to dryness gave 14g of ...