Lithium shows diagonal relationship with which element?
If X is a nonmetal, its oxide X2O3 is expected to be a/an ______ oxide.
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Consider the following reaction 2A + 3F2 → 2AF3.
What is the formula for the reaction product if we substitute iodine for fluorine?
The nature of bonds in the compounds of carbon is mostly:
Amongst the elements of group 17, fluorine is most reactive owing to it’s:
If x denoted the number of valence electrons of a representative element then its valence is equal to:
How many valence electrons does a carbon atom have?
Aluminium belongs to group 13 and sulphur belongs to group 16 of the periodic table. The compound formed by aluminum and sulphur is:
Which pair of elements from different groups resembles each other the most in their chemical properties?
Oxygen exhibits +2 oxidation state in the compound:
On moving down a group the number of valence electrons:
Among the following oxides, neutral oxide is:
The element which shows only negative oxidation state/s among following elements is:
The valence of sodium with atomic number 11 is:
The maximum covalence of the first member of each group is:
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