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1. Which of the following is not a type of chemical reaction? A) Combustion B) Synthesis C) Division D) Decomposition 2. In a combustion reaction, which of the following is always produced? A) Oxygen B) Carbon dioxide C) Water D) Hydrogen 3. Which of the following represents a double displacement reaction? A) AB → A + B B) AB + CD → AD + CB C) A + B → AB D) A + BC → AC + B 4. Which of the following is a characteristic of an exothermic reaction? A) Absorbs heat from surroundings B) Decreases in temperature C) Releases heat to surroundings D) Increases in entropy 5. What is the driving force behind a chemical reaction? A) Activation energy B) Catalysts C) Enthalpy D) Entropy 6. Which of the following statements is true about a redox reaction? A) Electrons are neither gained nor lost B) Electrons are gained by the oxidizing agent C) Electrons are gained by the reducing agent D) Electrons are lost by the reducing agent 7. Which of the following is an example of a precipitation reaction? A) Acid-base neutralization B) Formation of a gas C) Formation of a solid D) Exchange of ions 8. Which of the following statements is true about an endothermic reaction? A) Releases energy to surroundings B) Absorbs energy from surroundings C) Decreases in entropy D) Increases in temperature 9. Which of the following factors can affect the rate of a chemical reaction? A) Pressure B) Temperature C) Concentration of reactants D) All of the above 10. Which of the following is an example of a decomposition reaction? A) 2H₂ + O₂ → 2H₂O B) Mg + 2HCl → MgCl₂ + H₂ C) 2H₂O → 2H₂ + O₂ D) NaCl + AgNO₃ → NaNO₃ + AgCl https://t.me/GADAA_BARNOOTAA https://t.me/GADAA_BARNOOTAA https://t.me/GADAA_BARNOOTAA

English questions with answers: 1. Which sentence is grammatically correct?    a) He don't like apples.    b) He doesn’t like apples.    c) He isn’t liking apples.    d) He aren’t liking apples.    - Answer: b) 2. Identify the correct form of the verb:    They ____ to the concert last night.    a) goes    b) go    c) went    d) going    - Answer: c) went 3. Choose the sentence that uses a comma correctly:    a) Before we leave, let's make sure we have everything.    b) Before we leave let's, make sure we have everything.    c) Before we leave let's make sure, we have everything.    d) Before, we leave let's make sure we have everything.    - Answer: a) 4. Select the sentence with the correct subject-verb agreement:    a) Each of the players are ready.    b) Each of the players is ready.    c) Each of the players were ready.    d) Each of the players be ready.    - Answer: b) 5. Which word is an adjective?    a) Quickly    b) Beautiful    c) Between    d) Run    - Answer: b) Beautifulu 6. Choose the correct pronoun to complete the sentence:    Both Sarah and ___ are invited to the party.    a) me    b) I    c) myself    d) mine    - Answer: b) I 7. Which sentence uses a semicolon correctly?    a) I have a big test tomorrow; I can't go out tonight.    b) I have a big test tomorrow; and I can't go out tonight.    c) I have a big test tomorrow, I can't go out tonight.    d) I have a big test tomorrow: I can't go out tonight.    - Answer: a) 8. Identify the correct form of the adjective:    This is the ____ movie I have ever seen.    a) more exciting    b) most exciting    c) excitingest    d) exciting    - Answer: b) most exciting 9. Which sentence is in the passive voice?    a) The chef cooked a delicious meal.    b) A delicious meal was cooked by the chef.    c) The chef is cooking a delicious meal.    d) The chef has cooked a delicious meal.    - Answer: b) 10. Choose the correct preposition:     He is interested ____ learning new languages.     a) at     b) in     c) on     d) for     - Answer: b) in 11. Which sentence is correctly punctuated?     a) Its a beautiful day, isn’t it?     b) It's a beautiful day, isn't it?     c) Its a beautiful day isnt it?     d) It's a beautiful day isnt it?     - Answer: b) It's a beautiful day, isn't it? 12. Choose the correct verb tense:     By next year, I ____ from high school.     a) graduate     b) will graduate     c) graduated     d) will have graduated     - Answer: d) will have graduated 13. Select the correct conjunction:     You can come with us ____ you like.     a) or     b) nor     c) if     d) but     - Answer: c) if 14. Which sentence uses an apostrophe correctly?     a) The cat's toys are all over the floor.     b) The cats toys are all over the floor.     c) The cat's toy's are all over the floor.     d) The cats' toys is all over the floor.     - Answer: a) 15. Identify the correct comparative form:     She is ____ than her brother.     a) more tall     b) taller     c) tallest     d) more taller     - Answer: b) taller 16. Choose the correct form of the verb:     She ____ to the store every day.     a) go     b) goes     c) going     d) gone     - Answer: b) goes 17. Which sentence is correct?     a) He don't know the answer.     b) He doesn't know the answer.     c) He do not know the answer.     d) He not know the answer.     - Answer: b) 18. Choose the correct form of the verb to complete the sentence:     The committee ____ making a decision.     a) is     b) are     c) be     d) am     - Answer: a) is 19.They ____ finished their homework by the time the movie started.     a) have     b) has     c) having     d) had     - Answer: d) had 20.If she ____ harder, she would have passed the exam.     a) studied     b) had studied     c) studies     d) was studying     - Answer: b) had studied https://t.me/GADAA_BARNOOTAA https://t.me/GADAA_BARNOOTAA https://t.me/GADAA_BARNOOTAA