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A1
The weight of a molecule of a compound \(C_{60}H_{122}\) is :
(a) \(1.4\times 10^{21}g\)
(b) \(1.09\times 10^{21}g\)
(c) \(5.025\times 10^{23}g\)
(d) \(16.023\times 10^{23}g\)
A2
A compound contains atoms of three elements: A, B and C. If the oxidation number of A is +2, B is +5 and that of C is -2, the possible formula of the compound is :
(a) \(A_3(BC_4)_2\)
(b) \(A_3(B_4C)_2\)
(c) \(ABC_2\)
(d) \(A_2(BC_3)_2\)
Updated Wed, 04 Dec 2019 05:51 pm
34.2 g of sucrose \((C_{12}H_{22}O_{11})\) are dissolved in 90 g of water in a glass. The number of oxygen atoms in the solution are :
(a) \(3.66 \times 10^{26}\)
(b) \(6.6 \times 10^{23}\)
(c) \(3.66 \times 10^{24}\)
(d) \(6.0 \times 10^{22}\)
Updated Mon, 02 Dec 2019 04:53 pm
