topic 4 revision (group 1)

Question 1

Hydroxides

OH¯

Answer 1

white crystalline solid
slightly soluble
group 1 salts soluble
trans metals insoluble
group 2 hydroxides neut acids

Question 2

Nitrates

NO3-

Answer 2

white powders

all compounds soluble

Question 3

carbonates

(CO3)2-

Answer 3

white powder

all insoluble except (K, Na, NH₄⁺)

Question 4

Group 1 flame test

Answer 4

Lithium - crimson
sodium - yellow
potassium - lilac