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Group 2 + 7 (P1+P3)

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Total cards: 15•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (15)

#1
Front (Question)

What happens to the atomic radius, melting point, ionisation energy and reactivity in group 2?

Back (Answer)

Atomic radius - increases going down melting point - decreases going down ionisation energy - decreases going down reactivity - increases going down

#2
Front (Question)

Hydroxides and sulfates (solubility)

Back (Answer)

for HYDROXIDES Mg(OH)2 and going down solubility INCREASES for SULFATES MgSO4 and going down solubility DECREASES

#3
Front (Question)

Use of Mg(OH)2

Back (Answer)

medicine/indigestion

#4
Front (Question)

Use of Ca(OH)2

Back (Answer)

Agriculture

#5
Front (Question)

Use of BaSO4

Back (Answer)

good for absorbing X - rays.

#6
Front (Question)

Testing for SO42- ions

Back (Answer)

Add BaCl2 White ppt if ions present

#7
Front (Question)

What happens to the electronegativity, melting and boiling points in group 7?

Back (Answer)

electronegativity - decreases going down melting and boiling points - increases going down

#8
Front (Question)

Halogens act as…

Back (Answer)

oxidising agents F- (strongest) to I- (weakest)

#9
Front (Question)

Halide ions act as…

Back (Answer)

reducing agents I- (strongest) to F- (weakest)

#10
Front (Question)

Test for Cl-

Back (Answer)

AgNO3 White ppt

#11
Front (Question)

Test for Br-

Back (Answer)

AgNO3 Cream ppt

#12
Front (Question)

Test for I-

Back (Answer)

AgNO3 Yellow ppt

#13
Front (Question)

Test for AgCl

Back (Answer)

Dilute NH3 White ppt dissolves

#14
Front (Question)

Test for AgBr

Back (Answer)

Conc NH3 Cream ppt dissolves With dilute NH3 cream ppt remains

#15
Front (Question)

Uses of chlorine in water

Back (Answer)

DISPROPRTIONATION REACTION Cl2(g) + H2O(l) <–> HClO(aq) + HCl(aq) treats water, in swimming pool HClO is an oxidising agent used in bleach