Fill in the blanks by choosing the appropriate word/words from those given in the brackets:

(square pyramidal, electrical, 74; 26, sp³d², sp3d, chemical, 68, 32, tetrahedral, yellow, white, iodoform, Lucas)

A Galvanic cell converts ______energy into______energy.

Fill in the blanks by choosing the appropriate word/words from those given in the brackets:

(square pyramidal, electrical, 74; 26, sp³d², sp3d, chemical, 68, 32, tetrahedral, yellow, white, iodoform, Lucas)

The percentage of unoccupied spaces in bcc and fcc arrangements are _______ and _____respectively.

Fill in the blanks by choosing the appropriate word/words from those given in the brackets:

(square pyramidal, electrical, 74; 26, sp³d², sp3d, chemical, 68, 32, tetrahedral, yellow, white, iodoform, Lucas)

Propan-2-ol on reaction with iodine and sodium hydroxide gives ________ precipitate and the reaction is called ___________ test.

Fill in the blanks by choosing the appropriate word/words from those given in the brackets:

(square pyramidal, electrical, 74; 26, sp³d², sp3d, chemical, 68, 32, tetrahedral, yellow, white, iodoform, Lucas)

The geometry of XeOF₄ molecule is _______ and the hybridisation of Xenon atom in the molecule is ________.

Match the  following:

6.

Complete the following statements by selecting the correct alternative from the choices given:

During the course of an S_N1 reaction, the intermediate species formed is:

• a carbocation

• a free radical

• a carbanion

• an intermediate complex

Complete the following statements by selecting the correct alternative from the choices given:

Purification of aluminium by electrolytic refining is called:

• Serpeck's process

• Hoope's process

• Hall's process

• Baeyer's process

Complete the following statements by selecting the correct alternative from the choices given:

An aqueous solution of urea freezes at – 0.186°C, K_f for water = 1.86 K kg mo1^–1, K_b for water = 0.512 K kg mo1^–1. The boiling point of the urea solution will be:

• 373.065 K

• 373.0512K

• 373.186 K

• 373.512 K

Complete the following statements by selecting the correct alternative from the choices given:

In the dehydration of alcohols to alkenes by heating with concentrated sulphuric acid, the initiation step is:

• formation of carbocation

• formation of an ester

• protonation of the alcohol molecule

• elimination of water

Answer the following questions:

Why does the density of transition elements increase from Titanium to Copper? (at. no. Ti = 22, Cu = 29)