Question
Identify the pair of ions which have the same electronic configuration
Given below are four ions: Cl−, Li+, Al3+, K+ Identify the pair of ions which have the same electronic configuration. [Atomic number:…
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Question
Assertion (A): In the Contact Process SO3 gas is not directly dissolved in water to obtain sulphuric acid
Assertion (A): In the Contact Process SO3 gas is not directly dissolved in water to obtain sulphuric acid. Reason (R): Dense fog…
Question
Which of the following options has all the compounds which are members of the same homologous series?
Which of the following options has all the compounds which are members of the same homologous series? (a) CH4, C2H6, C3H8 (b)…
Question
The diagram given below shows the bonding in the covalent molecule AB2
The diagram given below shows the bonding in the covalent molecule AB2. Which option represents the correct electronic configuration of atoms A…
Question
The ore that can be concentrated by using magnetic separation
The ore that can be concentrated by using magnetic separation: (a) Corundum (b) Haematite (c) Calamine (d) Bauxite
Question
Assertion (A): The tendency of losing electrons increases down the Group
Assertion (A): The tendency of losing electrons increases down the Group. Reason (R): The most reactive metal is placed at the top…
Question
In the reaction given below sulphuric acid acts as a/an
In the reaction given below sulphuric acid acts as a/an: S + 2H2SO4 ⟶ 3SO2 + 2H2O (a) Non-volatile acid (b) Dibasic…
Question
An organic compound has a vapour density of 22
An organic compound has a vapour density of 22. The molecular formula of the organic compound is: [Atomic weight: C = 12,…
Question
The metal whose oxide can be reduced by common reducing agents
The metal whose oxide can be reduced by common reducing agents: (a) Copper (b) Sodium (c) Aluminium (d) Potassium
Question
Which formula represents a saturated hydrocarbon?
Which formula represents a saturated hydrocarbon? (a) C4H8 (b) C5H12 (c) C4H6 (d) C5H10