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Preparation and collection of ammonia gas using aluminium nitride
A student was instructed by the teacher to prepare and collect ammonia gas in the laboratory by using aluminium nitride. The student…
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40 cm3 of methane (CH4) is reacted with 60 cm3 of oxygen
40 cm3 of methane (CH4) is reacted with 60 cm3 of oxygen according to the equation: CH4 + 2O2 ⟶ CO2 +…
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X, Y & Z are three metallic atoms in successive order belonging to the same group
X, Y & Z are three metallic atoms in successive order belonging to the same group such that atomic radii of ‘X’…
Question
Aqueous copper (II) sulphate is electrolysed using copper electrodes. Which statement about the electrolysis is not correct?
Aqueous copper (II) sulphate is electrolysed using copper electrodes. Which statement about the electrolysis is not correct? (a) An oxidation reaction occurs…
Question
Which pair of reactants can be best used to produce lead (II) sulphate?
Which pair of reactants can be best used to produce lead (II) sulphate? (a) Sulphuric acid + Lead (b) Sulphuric acid +…
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:…
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