10th Class Physical Science Chapter wise Important bit bank in English

51. The hydrocarbons containing only C–C single bonds are known as ______________________.

View Answer
saturated hydrocarbons

52. All alkanes are ______________.

View Answer
saturated hydrocarbons

53. The hydrocarbons that contain at least one double bond (C=C) or contain at least one triple bond (C≡C) between the two carbon atoms are called ___________________.

View Answer
unsaturated hydrocarbons

54. _________ and _________ are the examples for unsaturated hydrocarbons.

View Answer
Alkenes , Alkynes

55. Straight chain, branched chain and closed chain hydro carbon compounds may be ___________ or ___________ .

View Answer
saturated , unsaturated

56. The hydrocarbons that contain –OH group are called _________.

View Answer
alcohols

57. General formula of alcohols is R – OH where ‘R’ is alkyl group, __________.

View Answer
CnH2n+1

58. The hydrocarbons with functional group –CHO are called ________.

View Answer
aldehydes

59. The hydrocarbons with functional group C=O are called _________.

View Answer
ketones

60. If one hydrogen atom is replaced from NH3 by an alkyl group we get the so called _________________.

View Answer
primary amines

61. If two hydrogen atoms of NH3 are replaced by two alkyl groups (same or different) we get ____________.

View Answer
secondary amines

62. The characteristic properties of an organic compound depend mainly on an atom or group of atoms in its molecule known as the ______________.

View Answer
functional group

63. The common system of the Butane is ____________.

View Answer
n-butane

64. The common system 2-methyl propane is ___________.

View Answer
iso-butane

65. The compounds which are having same molecular formula but different structures are called __________.

View Answer
isomers

66. The phenomenon of possessing same molecular formula but different properties by the compounds is known as ___________.

View Answer
isomerism

67. The series of carbon compounds in which two successive compounds differ by –CH2 unit is called ____________.

View Answer
homologous series

68. Oxidation reactions may be carried out using ____________.

View Answer
oxidizing agents

69. Fats and oils are both of _____________.

View Answer
fatty acids

70. A reaction in which an atom or a group of atoms in a given compound is replaced by other atom or group of atoms is called a ____________.

View Answer
substitution reaction

71. The process of conversion of starches and sugars to C2H5OH is called _______________.

View Answer
fermentation process

72. Pure ethanol boils at 78.3oC. Pure ethanol is called ____________.

View Answer
absolute (100 %) alcohol

73. ___________ is ethanol that contains impurities that make it undrinkable.

View Answer
Denatured alcohol

74. The chemical formula of potassium-di-chromate is ________.

View Answer
K2Cr2O7

75. K2Cr2O7 is a good ___________.

View Answer
oxidizing agent
Spread the love

1 thought on “10th Class Physical Science Chapter wise Important bit bank in English”

Leave a Comment

Solve : *
30 + 25 =


About Us | Contact Us | Privacy Polocy
error: Content is protected !!