Question
The atomic number of two atoms ‘X’ and ‘Y’ are 14 and 8 respectively
The atomic number of two atoms ‘X’ and ‘Y’ are 14 and 8 respectively. State: (a) the period to which ‘X’ belongs.…
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Question
Structural diagrams and IUPAC names of organic compounds
(a) Draw the structural diagram for the following organic compounds: 1. 2-methyl propene 2. butanal (b) Give IUPAC name for the following…
Question
Match the Column A with Column B
Match the Column A with Column B: Column A Column B (a) N2 + 3H2 ⇌ 2NH3 1. Vanadium Pentoxide (b) 4NH3…
Question
Complete the following sentences by choosing the correct word(s) from the brackets
Complete the following sentences by choosing the correct word(s) from the brackets: (a) …………… solution forms a coloured precipitate with ammonium hydroxide…
Question
State the terms for the following
State the terms for the following: (a) Undistilled alcohol containing a large amount of methanol. (b) A salt formed by the partial…
Question
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…
Question
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 +…
Question
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 +…