Multiple-choice questions:1. The two types of litmus paper are:-(a) blue and orange (b) yellow and red (c) red and orange (d) blue and red
2. Non-metallic oxides react with water to form:(a) acids (b) bases (c) salts (d) none of these
3.Slaked lime is a common name of: (a) calcium oxide (b) calcium hydroxide (c) calcium carbonate (d) none of these
4. The base used in antacid is:(a) magnesium hydroxide (b) sodium hydroxide (c) calcium hydroxide (d) none of these
5. What is the salt in the reaction: NaOH + HCl ----> NaCl + H2O(a) NaOH (b) HCl (c) NaCl (d) H2O
6. Which of the following is an acidic salt?(a) NaCl (b) Zn(NO)2 (c) ZnSO4 (d) NaHSO4
1. The two types of litmus paper are:-
Ans- (d) blue and red
2. Non-metallic oxides react with water to form:
Ans- (a) acids
3. Slaked lime is a common name of:
Ans- (b) calcium hydroxide
4. The base used in antacid is:
Ans- (a) magnesium hydroxide
5. What is the salt in the reaction: NaOH + HCl ----> NaCl + H2O
Ans- (c) NaCl
6. Which of the following is an acidic salt?
Ans- (d) NaHSO4
Related Articles
- A _________ is a substance that gives hydroxide ions in the presence of water.A. Base B. Salt C. Acid D. Hydroxide
- One of the following is a medicine for indigestion. This is:(a) Sodium hydroxide (b) Manganese dioxide (c) Magnesium hydroxide (d) Potassium hydroxide
- The products of chlor-alkali process are:(a) NaCl, Cl2 , and H2 (b) Cl2 , H2 and NaOH (c) Cl2, Na2CO3 and H2O (d) NaOH, Cl2 and HCl
- Write the chemical formulae of the following:(a) Magnesium chloride(b) Calcium oxide(c) Copper nitrate(d) Aluminium chloride(e) Calcium carbonate.
- Calcium oxide reacts vigorously with water to produce slaked lime.$CaO(s) + H_20 (l) \rightarrow Ca(OH)_2(aq)$This reaction can be classified as :(A) Combination reaction (B) Exothermic reaction (C) Endothermic reaction (D) Oxidation reactionWhich of the following is a correct option? (a) (A) and (C) (b) (C) and (D) (c) (A), (C) and (D) (d) (A) and (B)
- Write down the formulae for the following compounds :(a) Calcium oxide(b) Magnesium hydroxide
- The aqueous solution of one of the following salt will turn red litmus to blue. This salt is:(a) Potassium sulphate (b) Sodium sulphate (c) Sodium chloride (d) Potassium carbonate
- Which of the following colour of white light has the least wavelength?(a) red (b) orange (c) violet (d) blue
- In a double displacement reaction such as the reaction between sodium sulphate solution and barium chloride solution :(A) exchange of atoms takes place (B) exchange of ions takes place(C) a precipitate is produced (D) an insoluble salt is producedThe correct option is : (a) (B) and (D) (b) (A) and (C) (c) only (B) (d) (B), (C) and (D)
- What is the sum of two odd numbers?A) Even B) Odd C) Both A and B D) None of the above
- The muscles covers the(a) Skin(b) Bones(c) Both (a) and (b)(d) None of these
- Write down the chemical formula for the following compounds:(a) Aluminium carbonate(b) Calcium sulphide(c) Zinc carbonate(d) Copper phosphate(e) Magnesium bicarbonate(f) Aluminium hydroxide.
- Answer the following questions:1: Special type of substances used to test whether a substance is acidic/basic is known as (A) Indicators (B) Acids (C) Bases (D) Salt2: Which of the following is a strong acid? (A) Acetic Acid (B) Nitric Acid (C) Lactic Acid (D) Citric Acid3: The most commonly used natural indicator' Litmus is extracted from (A) Lichens (B) Turmeric (C) Beet Root (D) China Rose4: Which of the following colours is given by phenolphthalein in a basic salt solution. (A) Yellow (B) Pink (C) Orange Red (D) Colourless"
- A student measured the pH values of four solutions A, B, C and D which were found to be 4, 1, 13 and 11 respectively. Which of the following statements are correct about these solutions?(a) A is strong acid and B is weak acid (b) B is strong acid and D is weak base (c) D is strong base and C is weak base (d) C is strong base and A is weak acid (1) (a) and (b) (2) (b) and (c) (3) (c) and (d) (4) (b) and (d)
- P and Q are aqueous solutions of sodium chloride and sodium hydroxide respectively. Which of these will turn:(a) blue litmus red? (b)red litmus blue?
Kickstart Your Career
Get certified by completing the course
Get Started
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies