Question

Circle or (bubble) the correct answer with PEN. Be neat) Section A: (Circle or (bubble) the 1. In water, the acid that ater, the acid that dissociates partially in water as lons (1% to 2%) in solution is «) weak electrolyte b) nonconductor c) strong electrolyte d) nonelectrolyte According to the Arrheni ding to the Arrhenius theory, if KOH and Bacol and were separately dissolved in water, each would act as: a) a base and an acid respectively b) an acid and an acid respectively c) a base and a base respectively d)an acid and a base respectively Which solution of a base contains the largest number of moles of a base? a) 0.50 L of 4.0 M b ) 5.0 L of 4.0 M c) 4.0 L of 0.40 M d) 0.50 L of 0.40 M 3 10.500 L of a 3.50 M HCl acid is diluted to 1.00 L. the molarity of the new solutions a) 1.50 M b) 1.75 M c) 1.40 M d) 3.50 M 5 Which of the following is correctly identified a) NH3, is a strong acid c) HCIO4 is a strong acid b) Ca(OH)2 is a weak base d) H2CO3 is a strong acid 6 The Following reaction is classified as: K2CO3(aq)+BaCl2(aq) → BaCO3 (s)+ 2Cl(aq) a) acid-base neutralization reaction b) precipitation reaction c) single replacement reaction d) oxidation-reduction reaction 7 Which one of the following is a weak acid in aqueous solution? a) CH3COOH b) HNO3 C) NH; d) KOH

Answer 1

(1) weak electrolyte partially dressocrates in H2O (2 e) KOH and ea cohle both gives oth to solution and hence acts as a base. 3 b) Largest rember of males = (5:04) x (400 mil ') = 20 mol • Required formula VIMI = V2M2 w (00500L) x (350M). = 175 M (b O, M2= 20001 q wete og Titelov 144 totoonG=0 Lacid confugate bare is highly stabilized by resonance 203 (201) + Beelz (ca) > BaCO3 (8) + 2kelaar) 6 is correct precipitate Cho Cool is ao a weak acid. @