DAT questions

After denaturation of a protein, all of the following changes can be expected EXCEPT one. Which is the EXCEPTION?

• Breakdown of primary structure

• Change in three-dimensional shape

• Dissociation of protein subunits

• Loss of biological activity

• Unfolding of tertiary structure

A 1 L solution of which of the following will contain the greatest quantity of moles of Cl ions?

• .30 M CaCl2

• .10 M AlCl3

• .10 M NaCl

• .40 M MgCl2

• 1.0 M AgCl

Which of the following is the most stable carbocation?

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How many cubes have two of their exposed sides painted?

• 2 cubes

• 3 cubes

• 4 cubes

• 5 cubes

• 1 cube

Kelly is twice as old as her friend Jess. In ten years, Kelly will be four years older than three times Jess' current age. How old is Kelly now?

• 3 years old

• 5 years old

• 6 years old

• 8 years old

• 12 years old