Give the names and formulae of (a) two acidic oxides, and (b) two basic oxides.
1 Answers
Talk Doctor Online in Bissoy App
Give the names and formulae of two (i) strong monobasic acids (ii) weak dibasic acids
(i) Hydrochloric acid(HCl),nitric acid(HNO3) (ii) Carbonic acid (H2CO3),oxalic acid(C2H2O4)
1 Answers 1 views
What are the basic units of computer ? Give two names of sub-units of CPU and also give the functions of each unit.
The computer consists of the following basic units : 1. Input unit 2. Central Processing Unit (CPU) 3. Output unit 4. Memory unit The CPU has two subunits : (A) Control Unit (CU): Control unit controls...
1 Answers 1 views
Give the names and formulae of two strong acids and two weak acids.
(a) Citric acid – Lemon. (b) Oxalic acid – Tomatoes. (c) Lactic acid – Sour milk or curd. (d) Tartaric acid – Tamarind.
1 Answers 1 views
(a) What is a salt ? Give the names and formulae of any two salts. Also name the acids and bases
(a) A salt is a compound formed from an acid by the replacement of the hydrogen in the acid by a metal. Example: Sodium chloride – NaCl; It is obtained from...
1 Answers 1 views
What name is given to those metal oxides which show basic as well as acidic behaviour ?
Amphoteric oxides.
1 Answers 1 views
Write the names and formulae of (a) a metal hydride, and (b) a non-metal hydride.
Sodium hydride,Hydrogen sulphide
1 Answers 1 views
(a) What are amphoteric oxides ? Give two examples of amphoteric oxides. (b) Choose the acidic oxides,
(a) Those metal oxides which show basic as well as acidic behavior are known as amphoteric oxides. Example: Aluminium oxide and zinc oxide. (b) Acidic oxide – CO2 , CO, SO2 and...
1 Answers 1 views
(a) Give the names and formulae of one metal chloride and one non-metal chloride. (b) State an important property in
Non-metal chloride: Carbon tetrachloride, CCl 4 (b) Sodium chloride solution conducts electricity whereas carbon tetrachlori de does not conduct electricity. (c) Sodium chloride is an ionic compoun d whereas carbon tetrachloride is...
1 Answers 1 views
(a) Give IUPAC names and formulae of an organic compound containing single bonds and the
(a) Methane (single bond): CH4 Ethyne (triple bond): C2H2 (b) Benzene: C6H6 (c) Isobutene
1 Answers 1 views
What are oxides ? Give two examples for each of metallic and non-metallic oxides.
Oxides are binary compounds formed by the chemical combination of a substance metal or a non-metal with oxygen. Examples : Metal: 1. Sodium oxide (Na2O). 2. Calcium oxide (CaO). Non-metal: 1. Sulphur dioxide (SO2). 2. Carbon dioxide...
1 Answers 2 views