CHETAN 2ND ASSESSMENT

The property of elements which increases down the group of the periodic table is...............

• Electronegativity

• Electron affinity

• Ionic radius

• Ionization energy

The products of the electrolysis of dilute Sodium Chloride using carbon electrodes are Anode:Cathode

• Chlorine:Sodium

• Oxygen:Hydrogen

• Chlorine:Hydrogen

• Hydrogen:Oxygen

Determine the quantity of electricity used when a current of 0.20 amperes is passed through an electrolytic cell for 60 minutes ...........

• 12 C

• 120 C

• 360 C

• 720 C

200 cm' of air was passed over heated copper in a syringe several times to produce copper (II)

oxide. When cooled, the final volume of air recorded was 158 cm'. Estimate the percentage of

oxygen in the air.

The abnormally high boiling point of water is primarily due to

Oxochlorate (I) acid is used as a bleaching agent because it is .....................

• a weak acid

• a reducing agent

• an oxidizing agent

• a strong acid

The ideal gas equation is

The use of diamond in abrasives is due to its ........

• octahedral shape

• high melting point

• durability

• hardness

The group that oxygen belongs to is collectively called

Halogens generally react with metals to form

• alkalis

• acids

• bases

• salts