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 ________.

5.

Match the  following:

A. Rate constant	(i) Dialysis
B. Biodegradable	(ii) Glycine
C. Zwitterion	(iii) Arrhenius equation
D. Purification of colloids	(iv) PHBV

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)