Work Sheet Code: C09/ABS/WS1
IIT Foundation Work Sheet
Topic : Acids, Bases and Salts
Instructions:
1. Immediately fill your particulars by using a Blue/Black Pen Only.
2. There is only one correct answer for each question. Fill the bubble on the OMR to mark your answer.
3. Working should be done only in the space provided.
4. Don’t fold or make any stray marks on the Answer Sheet.
Name: _______________________
1.
Subject: Chemistry; Class: IX; Section: ________ Roll No. _______________
Among the following, the Arrhenius acid is
(1) CH3COOH
(2) NH4OH
(3) Fe(OH)2
Among the following, the Arrhenius base is
(1) H2CO3
(2) Al(OH)3
(3) Na2O
Among the following, the Bronsted-Lowry acid is
2.
3.
(1) HSO4
4.
(2) CN 
(4) CO2
(4) HNO3
(3) CO32
(4) NH 3
(3) BF3
(4) Cl 
(3) CO2
(4) SO2
Among the following, the Lewis acid is
(1) H 
5.
(2) NH 3
Among the following, the Lewis base is
(1) CN 
(2) OH 
Assertion and Reason type questions:(1) Both A and R are correct and R is the correct explanation of A
(2) Both A and R are correct and R is not the correct explanation of A
(3) A is correct, R is incorrect
(4) A is incorrect, R is correct
6.
Assertion (A): HNO3 is an acid
Reason (R): According to Arrhenius concept an acid is a substance which produces hydrogen ions when
dissolved in water.
7.
Assertion (A): Potassium hydroxide is a base.
Reason (R): Base is a substance which produces hydroxyl ions when it dissolved in water.
Statements type questions:(1) All A, B, C are correct
(2) A, B, C are incorrect
(3) A, B are correct and C is incorrect
(4) A, B are incorrect and C is correct
8.
Statement (A): H3PO4 acts as an acid, according to Arrhenius theory.
Statement (B): Ca(OH)2 acts as a base, according to Arrhenius theory.
Statement (C): NH3 acts as a base, according to Arrhenius theory.
Statement (A): HSO4 acts as an acid, according to Bronsted – Lowry theory.
9.
Statement (B): CN- acts as base, according to Bronsted – Lowry theory.
Statement (C): H2O acts as a base as well as an acid, according to Bronsted Lowry theory
SnCl4
(1) Lewis base
(2) Arrhenius base
(3) Lewis acid
(4) Arrhenius acid
10.
OMR (Use HB Pencil Only)
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PTO – Work Space