Organic Chemistry Answers

Arrange the following in order of increasing stength :

1) Trichloromethanoic acid 2) Ethanoic acid 3) Dichloroethanoic acid 4) Chloroethanoic acid

A. 2,4,3,1

B. 1,2,3,4

C. 1,3,4,2,

D.4,3,2,1

E.4,3,1,2

What is the number of atoms of hydrogen in n moles of methane where n is the total order of the reaction. S₂O₈^2-_(aq) + 3I^-_(aq) → SO₄^2-_(aq) + I₃^-_(aq).such that this step is called the rate-determining step of the reaction (N_A represents the Avogadro constant).

A. 1/4(N_A) B. 1/3(N_A) C. (N_A) D. 1/2(N_A/4) E. N_A/16

The number of moles of a sodium salt (A) is defined as m = ∫₀¹ [1/1+x² ]dx. Given that the sodium salt (A) reacts with concentrated sulphuric acid in the ratio 2:1 to produce a product B according to the equation

A + H₂SO₄ → B. Find the mass of the compound B that was produced (RMM of B= 20g/mol)

A. (π/4)g B. (20.5 +π/4)g

C. (5/3)m² D. (5/2)π

Select the strongest acid and explain why?

A. HCl B. HF C. HI D. HBr

X=CH₃-CH₂-CH₂-CH₂-CH₃ Y=CH₃-CH₂-CH₂-CH₂-OH Z= HO-CH₂-CH₂-CH₂-OH

Based on concepts of polarity and hydrogen bonding, which of the following sequences correctly lists the compounds above in the order of their increasing solubility in water?

A. Z<Y<X B. X<Y<Z

Which of the substances has free electrons in its bonding model?

A. Carbon(diamond)

B. Carbon(graphite)

C. Carbon dioxide

D. Fluorine

Which is not an intramolecular force?

A. London forces

B. Metallic bonds

C. Covalent bonds

D. Electrovalent bonds

A container of 10 litres has a volume expressed in m³

A. 1m³

B. 0.01m³

C. 0.001m³

D. 0.0001m³