iCON Education - s-Block Elements

2009 JEE Advanced MSQ

iCON Education HYD, 79930 92826, 73309 72826 IIT-JEE 2009 Paper 1 Offline

The compound(s) formed upon combustion of sodium metal in excess air is (are)

A.

Na₂O₂

B.

Na₂O

C.

NaO₂

D.

NaOH

1998 JEE Advanced MSQ

iCON Education HYD, 79930 92826, 73309 72826 IIT-JEE 1998

Highly pure dilute solution of sodium in liquid ammonia

A.

shows blue color

B.

exhibits electrical conductivity

C.

produces sodium amide

D.

produces hydrogen gas

1992 JEE Advanced MSQ

iCON Education HYD, 79930 92826, 73309 72826 IIT-JEE 1992

The species that do not contain peroxide ions are

A.

PbO₂

B.

H₂O₂

C.

SrO₂

D.

BaO₂

1990 JEE Advanced MSQ

iCON Education HYD, 79930 92826, 73309 72826 IIT-JEE 1990

When zeolite, which is hydrated sodium aluminium silicate is treated with hard water the sodium ions are exchanged with

A.

H⁺ ions

B.

Ca⁺⁺ ions

C.

$SO_4^{--}$ ions

D.

Mg⁺⁺ ions

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