1.
24) Which element listed is the least 29) For an endothermic reaction at equilibrium, A)
nitrogern B) hydrogen C) oxygen D) fluorine E) chlorine A) does not shift the equilibrium since
K is a constant B) increases the rate of the reverse reaction to form more reactants. C) increases
the rate of the forward reaction to form more products. D) increases the rate of the reverse
reaction to form more products. 25) Which of the following has a double bond? B) NHs D) CO
30) Which pair of compounds will form a solution? A) Benzene (CeHo) and hexane (C&Hu;) B)
Na SO4 and benzene (CsHo) C) NaCI and hexane (C&H;) D) H:O and CCl E) More than one of
the combinations above will form solutions. E) HS 26) Which of the following has a triple bond?
A) CH ?) ?? C) SO D) NO, E) none of these 27) Consider a linear molecule, such as CO2 the
electronegativities of C and O are 2.5 and 3.5, respectively. Based on these values and on 31) In
a solution, the solvent A) is a liquid. B) can be a liquid or gas. C) can be a solid, liquid, or gas.
D) is never a solid. E) is the substance present in the smallest consideration of molecular
geometry, the C-o bond can be considered and the olecule is polar, polar B) non-polar; non-polar
C) polar, non-polar D) non-polar; polar E) none of the above on. 32) Oil does not dissolve in
water because A) oil is polar B) oil is nonpolar. C) water is nonpolar D) water is saturated. E) oil
is hydrated. 28) 20. An equilibrium constant with a value of 8.0 x 10° indicates that at
equilibrium A) the reactants are favored. B) the products are favored. C) approximately equal
concentrations of reactants and products are present. D) there are more reactants present than 33)
According to Henry's law, the solubility of a A) decreases as the gas pressure above the liquid
B) increases as the gas pressure above the liquid gas in a liquid increases. increases. C) remains
the same as the temperature increases. products. D) depends on the liquid polarity E) depends on
the liquid density.
Solution
24) B) Hydrogen
25) C) O2
26) B) CO
27) C) polar; Non polar
28) B) the products are favoured
29) C) increase the rate of forward reaction to form more products

2.
30) A) Benzene(C6H6) and Hexane (C6H14)
31) C) Can be a solid, liquid or gas
32) B) oil is non polar
33) B) Increases as the gas pressure above the liquid is increases