Jd lee

Question 1

Only synthetic radioactive Lanthanide

Answer 1

Promethium

Question 2

Hydrolysis of Lanthanide carbides produces which gas

Answer 2

Ethyne

Question 3

Composition of misch metal

Answer 3

95% metal 50% Syria 40% lanthanum 5% iron traces of sulphur calcium carbon and Aluminium

Question 4

Heaviest naturally occurring element

Answer 4

Uranium

Question 5

Used as a few road in nuclear reactors and in the treatment of cancer

Answer 5

Thorium

Question 6

Aptoide used as nuclear fuel it salt are used to import colour to glass and used in medicines

Answer 6

Uranium is used as a nuclear fuel. It solves are used to impart green colour to glass and are used in medicine

Question 7

Which has higher tendency to work complex formation lanthanides or actinoids

Answer 7

Actinoids

Question 8

Which oxides in hydroxides are more basic lampshenoids or actinoids

Answer 8

Actinois

Question 9

Which element has more density lanthanides or actinoids

Answer 9

Actinoids

Question 10

Most dense element

Answer 10

Iridium