51)

Which fibre among the following is used to make rayon clothing?

SSC CHSL 2021

A)

Pectin

B)

Mucilage

C)

Cellulose

D)

Gum

52)

How many hydrogen atoms does a molecule of acetic acid contain?

SSC Selection Post Matric 2022

A)

Four

B)

 Two

C)

 One

D)

 Three

53)

How many hydrogen atoms does a molecule of calcium hydroxide contain?

SSC Selection Post Matric 2022

A)

One

B)

Three

C)

Two

D)

Four

54)

How many oxygen atoms are there in a molecule of sodium peroxide?

SSC Selection Post Matric 2022

A)

Four

B)

Two

C)

Three

D)

One

55)

How many atoms of hydrogen are there in Ammonium Chloride?

SSC Selection Post Matric 2022

A)

Two

B)

Three

C)

One

D)

Four

56)

Which of the following terms refers to the amount of dissolved salts that are present in water?

SSC Selection Post Matric 2022

A)

Salinity

B)

Caloricity

C)

Crypticity

D)

Viscosity

57)

Which of the following forms metallic bonds in elemental stage?

SSC Selection Post Matric 2022

A)

Phosphorus

B)

Bismuth

C)

Arsenic

D)

Antimony

58)

______ is used to remove the temporary and permanent hardness of water.

SSC Selection Post Matric 2022

A)

Sodium carbonate

B)

Calcium oxide

C)

Potassium oxide

D)

Hydrogen sulphide

59)

Honey is composed of water and two types of sugars: ______ and glucose.

SSC Selection Post Matric 2022

A)

sucrose

B)

dextrose

C)

fructose

D)

laevulose

60)

Hydro Thermal Carbonisation technology developed at IIT, Kharagpur is a process of generation of energy from which of the following sources?

SSC CPO 2020

A)

Solid waste with high moisture content

B)

Water current in rivers

C)

Hydropower in barrages and dams

D)

Naturally available hydrocarbons