MEDIUM
Earn 100

Explain the acidity of oxides based on oxidation state of central atom.

Important Questions on p-Block Elements

MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
Which of the following is also called as nitrogen sesquioxide?
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
Give one example of mixed oxide. Why is it called mixed oxide?
EASY
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
The covalent characters of CaCl2BaCl2,SrCl2 and MgCl2 follow the order :
EASY
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
Which pair of oxides is acidic in nature?
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
Which one of the following is an oxide?
EASY
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
Highest covalent character is found in which of the following?
EASY
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
The melting points of (i) BeCl2 (ii) CaCl2and (iii)HgCl2 follows the order
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
Which of the following is strongest base? 
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
The order of basic character of given oxides is -
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
The correct increasing order of extent of hydrolysis is
HARD
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
Which of the following represents incorrect order?
EASY
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
Order of the ionic character of the following:
MgCl2, MgBr2, MgI2.
 
HARD
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
Among CaH2, NH3, NaH and B2H6, which are covalent hydride?
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
The correct order of increasing covalent character of the following is :
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties

Represent the union of two sets by Venn diagram for each of the following.

X={x | x is a prime number between 80 and 100}

Y={y | y is an odd number between 90 and 100}

HARD
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
Which of the following is the strongest acid?
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
Which has maximum covalent character?
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
For AB bond, if per cent ionic character is plotted against electronegativity difference XA-XB, the shape of the curve would look like


Question Image.

Which is the correct curve?
MEDIUM
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
The decomposition temperature is maximum for
HARD
Chemistry>Inorganic Chemistry>p-Block Elements>Dioxygen: Preparation and Properties
Point out the correct statements