Tag Archives: DAT

Two Trains

Two trains are approaching each other from opposite directions with the speeds 10 miles per hour and 20 miles per hour, and heading for a collision. If they are a quarter mile apart, how long will it take for them to collide?

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Choose Wisely

Which of the following statements is correct?

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The Molecular Formula

If an unknown compound is found to have an empirical formula of CH4, which of the following is the molecular formula if the molar mass was determined to be 128 g/mol?

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Pick Teams

From a group of 5 men and 7 women, in how many different ways can a team of 2 men and 3 women be formed?

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Degrees of Unsaturation

How many degrees of unsaturation are present in the anxiolytic drug Valium (diazepam), molecular formula C16H13ClN2O?

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Final Oxidation Number

What is the final oxidation number of carbon in the following chemical reaction?

6CO2 + 6H2O -> C6H12O6 + 6O2

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Preventative Measures

A particle that can bind in the active site of an enzyme, preventing the binding of the substrate is referred to as which of the following?

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What’s My Age Again

A father’s age is twice the sum of the ages of his four sons. In 30 years, the total of the sons’ ages will be twice the age of their father. How old is the father now?

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Phenotypic Similarity

A male who is homozygous dominant for hair texture has straight hair. His brother, who is heterozygous for hair texture also has straight hair. This phenotypic similarity is a result of which of the following?

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Sea Birds and Seawater

Which statement best explains why some sea birds can drink seawater but humans cannot?

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