Comprehension

Dogs and cats should never be permitted to eat chocolate, because chocolate works like a poison in their bodies. Chocolate contains a chemical called theobromine, which is similar to caffeine. Human bodies are able to process the theobromine without any ill side effects, but dogs and cats cannot.
Different types of chocolate contain different amount of theobromine. It would take \(20\) ounces of milk chocolate to kill a \(20\)-pound dog, but only \(2\) ounces of baker's chocolate or \(6\) ounces of semi-sweet chocolate. The amounts, of course, are much smaller for a cat, whose body weight is typically less than that of a dog. Most cats are not naturally attracted to eating chocolate, but many dogs are. Dogs by nature will sample nearly anything that they see their masters eating, so pet owners must take care to keep all chocolate products well out of reach of their dogs and cats.

Question: 1

Chocolate is poisonous for dogs and cats because

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When answering comprehension questions, always select the option that is directly supported by the passage. Here, the passage explicitly states that dogs and cats cannot process theobromine.
Updated On: Jul 15, 2026
  • it contains caffeine.
  • Chocolate is made from processed cocoa.
  • it gets stuck in their intestines.
  • they cannot process theobromine.
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The Correct Option is D

Solution and Explanation

Concept: The passage states that chocolate contains a chemical called theobromine. Humans can process theobromine without harmful effects, but dogs and cats cannot.

Step 1:
Read the relevant statement from the passage.
The passage says that “Human bodies are able to process theobromine without any ill side effects, but dogs and cats cannot.”

Step 2:
Analyse the options.

• It contains caffeine -- Mentioned as similar to theobromine, but not the reason.
• Chocolate is made from processed cocoa -- Not the cause.
• It gets stuck in their intestines -- Not stated in the passage.
• They cannot process theobromine -- Correct. \checkmark

Step 3:
Final conclusion.
Hence, chocolate is poisonous to dogs and cats because \[ \boxed{\text{they cannot process theobromine}.} \]
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Question: 2

Chocolate is poisonous for dogs and cats because

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In comprehension questions, always identify the sentence in the passage that directly answers the question. Here, the passage clearly states that dogs and cats cannot process theobromine, making option (D) the correct answer.
Updated On: Jul 15, 2026
  • it contains caffeine.
  • Chocolate is made from processed cocoa.
  • it gets stuck in their intestines.
  • they cannot process theobromine.
Show Solution
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The Correct Option is D

Solution and Explanation

Concept: The passage explains that chocolate contains a chemical called theobromine. While humans can digest and process this chemical safely, dogs and cats cannot, making chocolate poisonous to them.

Step 1:
Read the relevant information from the passage.
The passage states that human bodies can process theobromine without harmful effects, whereas dogs and cats are unable to do so.

Step 2:
Analyse the options.

• It contains caffeine -- Incorrect. The passage mentions caffeine only as a similar substance.
• Chocolate is made from processed cocoa -- Incorrect. This is not the reason for toxicity.
• It gets stuck in their intestines -- Incorrect. The passage does not mention this.
• They cannot process theobromine -- Correct. \checkmark

Step 3:
Final conclusion.
Hence, chocolate is poisonous to dogs and cats because \[ \boxed{\text{they cannot process theobromine}.} \]
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Question: 3

According to the passage, the required quantity to kill a dog with milk chocolate is

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Always identify the exact quantity mentioned in the passage. Here, the passage clearly states that 20 ounces of milk chocolate can be fatal for a 20-pound dog.
Updated On: Jul 15, 2026
  • 20 ounces
  • 2 ounces
  • 6 ounces
  • 10 ounces
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The Correct Option is A

Solution and Explanation

Concept: The passage states that the amount of chocolate required to be fatal depends on the type of chocolate because different chocolates contain different amounts of theobromine.

Step 1:
Read the relevant statement from the passage.
The passage mentions that “It would take 20 ounces of milk chocolate to kill a 20-pound dog, but only six ounces of baker's chocolate or six ounces of semi-sweet chocolate.”

Step 2:
Analyse the options.

• 20 ounces -- Correct. \checkmark
• 2 ounces -- Incorrect.
• 6 ounces -- Refers to baker's or semi-sweet chocolate, not milk chocolate.
• 10 ounces -- Incorrect.

Step 3:
Final conclusion.
Hence, according to the passage, the required quantity of milk chocolate is \[ \boxed{20\ \text{ounces}.} \]
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Question: 4

A dog eats chocolate

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For comprehension questions, choose the option directly supported by the passage. Avoid making assumptions beyond the given information.
Updated On: Jul 15, 2026
  • because it tastes good.
  • because cats won't eat chocolate.
  • as it can smell the theobromine.
  • because it imitates its owners.
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The Correct Option is D

Solution and Explanation

Concept: The passage explains that dogs may eat chocolate because they naturally consume anything they see their owners eating.

Step 1:
Read the relevant statement from the passage.
The passage states that “Dogs by nature will sample nearly anything that they see their owners eating.”

Step 2:
Analyse the options.

• Because it tastes good -- Not stated.
• Because cats won't eat chocolate -- Incorrect.
• As it can smell the theobromine -- Not mentioned.
• Because it imitates its owners -- Correct. \checkmark

Step 3:
Final conclusion.
Hence, the correct answer is \[ \boxed{\text{because it imitates its owners}.} \]
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Question: 5

Chocolate contains a dangerous chemical for dogs called

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Remember: \[ \boxed{\text{Chocolate} \rightarrow \text{Theobromine} \rightarrow \text{Toxic to dogs and cats}} \]
Updated On: Jul 15, 2026
  • caffeine.
  • semi-sweet.
  • theobromine.
  • more sweet.
Show Solution
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The Correct Option is C

Solution and Explanation

Concept: The passage clearly identifies theobromine as the chemical in chocolate that is poisonous to dogs and cats.

Step 1:
Read the relevant statement.
The passage states that chocolate contains a chemical called theobromine, which dogs and cats cannot process properly.

Step 2:
Analyse the options.

• Caffeine -- Only mentioned as a similar chemical.
• Semi-sweet -- Type of chocolate, not a chemical.
• Theobromine -- Correct. \checkmark
• More sweet -- Not a chemical.

Step 3:
Final conclusion.
Therefore, the dangerous chemical is \[ \boxed{\text{theobromine}.} \]
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Question: 6

Dogs and Cats have the ill side effects of eating

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All types of chocolate contain theobromine. Although the amount varies, every type of chocolate can be harmful to dogs and cats. Therefore, pets should not be given any chocolate.
Updated On: Jul 15, 2026
  • theobromine.
  • caffeine.
  • baker's chocolate.
  • any chocolate.
Show Solution
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The Correct Option is D

Solution and Explanation

Concept: The passage explains that all types of chocolate contain theobromine, although in different amounts. Since dogs and cats cannot process theobromine, any type of chocolate can be harmful to them.

Step 1:
Read the relevant information from the passage.
The passage states that different types of chocolate contain different amounts of theobromine and advises pet owners to keep all chocolate products away from dogs and cats.

Step 2:
Analyse the options.

• Theobromine -- It is the harmful chemical, but the question asks what they have ill effects from eating.
• Caffeine -- Only mentioned as a similar chemical.
• Baker's chocolate -- Harmful, but not the only harmful type.
• Any chocolate -- Correct, since all chocolates contain theobromine. \checkmark

Step 3:
Final conclusion.
Hence, dogs and cats have ill side effects from eating \[ \boxed{\text{any chocolate}.} \]
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