Some Basic Concepts In Chemistry Mock Tests
38 questions available
Some Basic Concepts In Chemistry Mock Test 1
Questions:
30
Some Basic Concepts In Chemistry Mock Test 2
Questions:
8
नमूना प्रश्न
A solution contains 20% by mass of NaOH (molar mass = 40 g/mol). If the density of the solution is 1.02 g/mL, the molarity of the solution is:
2.4 g of magnesium (atomic mass = 24 g/mol) is burnt in excess oxygen. The mass of magnesium oxide formed is:
Which of the following species has the highest electron gain enthalpy?
One gram of an organic compound produces 0.96 g of carbon on complete combustion. What is the percentage of carbon in the compound?
The empirical formula of glucose (C₆H₁₂O₆) is:
1.505 × 10²² molecules of SO₂ are removed from 8.0 g of SO₂. The number of moles of SO₂ remaining is: (S = 32, O = 16, Nₐ = 6.022 × 10²³)
5.6 g of iron reacts with 2.24 L of Cl₂ at STP to form FeCl₃. The mass of FeCl₃ formed is: (Fe = 56, Cl = 35.5)
How many significant figures are there in 0.003040?
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