This quiz works best with JavaScript enabled. Home > Grammar > Discourse > Substitution – Quiz 30 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Substitution Quiz 30 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Y = x-9 y =-9 A) 0, -9. B) -1, 2. C) -18, -9. D) -81, -3. Show Answer Correct Answer: A) 0, -9. 2. Things which cannot be believed A) Incredible. B) Insatiable. C) Annoyable. D) Vulnerable. Show Answer Correct Answer: A) Incredible. 3. When solving a system of equations algebraically, which statement results in infinite solutions? A) 4 = 7. B) 2 = 2. C) -3 = 3. D) All of the above. Show Answer Correct Answer: B) 2 = 2. 4. What is a nucleophile? A) A species that has lone pair of electron. B) Negatively charged ion. C) Positively charged ion. D) A species that has one unpaired electron. Show Answer Correct Answer: A) A species that has lone pair of electron. 5. With respect to the electrophilic aromatic substitution of benzene which of the following is not true? A) A non-aromatic intermediate is formed. B) Benzene acts as an electrophile. C) A proton is lost in the final step. D) Resonance forms are important. Show Answer Correct Answer: B) Benzene acts as an electrophile. 6. Solve the system of equations by substitution. $y=3$ $-4x-4y=-24$ A) (-3, -6). B) (-3, 6). C) (3. 3). D) (-3, 3). Show Answer Correct Answer: C) (3. 3). 7. Why does substitution help us solve a system of equations? A) It changes one variable to an expression using the other variable, so we can solve an equation that only has one variable at a time. B) It creates a problem with fewer steps. C) It puts both equations in slope-intercept form for easy graphing. D) None of the above. Show Answer Correct Answer: A) It changes one variable to an expression using the other variable, so we can solve an equation that only has one variable at a time. 8. Solve using substitution. y =-6x + 5-2x + y = 5 A) (-3, -6). B) (-6, 3). C) (0, 5). D) (-3, 5). Show Answer Correct Answer: C) (0, 5). 9. $\int10x^{ }\left(5x^2-4\right)^3dx$ A) $\left(5x^2-4\right)^4+C$. B) $4\left(5x^2-4\right)^4+C$. C) $\frac{1}{4}\left(5x^2-4\right)^4+C$. D) $5x^2\left(\frac{5}{3}x^3-4x\right)^4+C$. Show Answer Correct Answer: C) $\frac{1}{4}\left(5x^2-4\right)^4+C$. 10. Solve the system of equations by substitution.y =-4x + 5y = 3x-16 A) (-3, -25). B) (3, -7). C) (11, 17). D) (21, 47). Show Answer Correct Answer: B) (3, -7). 11. Given 'half the difference of m and 2' and m =-8, what is the value of the expression? A) 3. B) -3. C) 5. D) -5. Show Answer Correct Answer: D) -5. 12. Which is an algebraic expression? A) 3 + 1 = 4. B) 4y = 12. C) Y + 6. D) 7-2. Show Answer Correct Answer: C) Y + 6. 13. $f\left(x\right)=4x^3+3x^2-8x+13$ A) 5. B) 10. C) 0. D) 9. Show Answer Correct Answer: D) 9. 14. Find the error if there any:Despite of his hard work (a)/he could not (b)/ get success in the class (c). A) A. B) B. C) C. D) No error. Show Answer Correct Answer: A) A. 15. Which of the haloalkanes does not typically undergo substitution reactions, due to low reactivity? A) Alkyl fluorides. B) Alkyl chlorides. C) Alkyl bromides. D) Alkyl iodides. Show Answer Correct Answer: A) Alkyl fluorides. 16. Murder of a king is called as? A) Genocide. B) Infanticide. C) Regicide. D) Matricide. Show Answer Correct Answer: C) Regicide. 17. Solve the system by substitution. y =-6x + 3-18x-3y = 4 A) (-3, 8). B) (-8, -3). C) (2, -3). D) No Solution. Show Answer Correct Answer: D) No Solution. 18. $^{+}$NO$_{2}$ A) The reactive electrophile in Friedel-Crafts acylation reactions. B) The electrophile in aromatic nitration. C) Groups which activate aromatic rings towards electrophilic substitution. D) Groups which activate aromatic rings towards nucleophilic substitution. E) Source of F$^{+}$ in fluorination reactions. Show Answer Correct Answer: B) The electrophile in aromatic nitration. 19. What is the Y-VALUE in the (X, Y) solution to the following system of equations? $y=8x+10$ $2x+2y=-16$ A) -6. B) 2. C) -2. D) 6. Show Answer Correct Answer: A) -6. 20. Y = x + 6x = 21y =? A) 24. B) 25. C) 26. D) 27. Show Answer Correct Answer: D) 27. ← PreviousRelated QuizzesGrammar QuizzesSubstitution Quiz 1Substitution Quiz 2Substitution Quiz 3Substitution Quiz 4Substitution Quiz 5Substitution Quiz 6Substitution Quiz 7Substitution Quiz 8Substitution Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books