Iron II Oxide

Q. Which of the following represents the lattice structure of $F{e}_{0.95}O$?

1. 
2. 
3. Both a. and b. are correct
4. None of these

Q. Iron is rendered passive by treatment with concentrated

1. $H_{2}S{O}_4$
2. $H_{3}P{O}_4$
3. HCl
4. $HN{O}_3$

Q. Blood red coloured solution is produced when ferric chloride solution is treated with:

1. $KSCN$
2. $KOH$
3. $K_4\left[Fe\right(CN{)}_6]$
4. $K_3\left[Fe\right(CN{)}_6]$

Q. What is false about Mohr salt

1. It decoloures $KMn{O}_4$
2. It’s a primary standard
3. double salt
4. Oxidation state of iron is +3 in salt

Q. Blood red coloured solution is produced when ferric chloride solution is treated with:

1. $KSCN$
2. $KOH$
3. $K_4\left[Fe\right(CN{)}_6]$
4. $K_3\left[Fe\right(CN{)}_6]$

Q.

Compare the properties of a typical metal and a non-metal on the following criteria.

(a) Electronic configuration

(b) Nature of oxide

(c) Oxidising or reducing behavior

(d) Conduction of heat and electricity

Q. Blood red coloured solution is produced when ferric chloride solution is treated with:

1. $KSCN$
2. $KOH$
3. $K_4\left[Fe\right(CN{)}_6]$
4. $K_3\left[Fe\right(CN{)}_6]$

Q. What is false about Mohr salt

1. It decoloures $KMn{O}_4$
2. It’s a primary standard
3. double salt
4. Oxidation state of iron is +3 in salt