Water molecule can be ligands especially when they are bonded to

• A. alkaline earth metals
• B. alkali metals
• C. transition metals
• D. group VII elements

What volume of a 0.1M H₃PO₄, will be required to neutralize 45.0cm³ of a 0.2M NaOH?

• A) 40.0cm³
• B) 10.0cm³
• C) 20.0cm³
• D) 27.0cm³

Which of the following atoms contains the highest number of electrons in the outermost shell?

• A.₈O
• B.₁₀Ne
• C.₁₅P
• D.₁₉K

What technique is suitable for separating a binary solution of potassium chloride and potassium trioxochlorate (V)?

• A) Fractional crystallization
• B) Fractional distillation
• C) Filtration
• D) Evaporation

Which of the following is a property of ionic chlorides?

• A. They can be decomposed by heat
• B. They react with aqueous AgNO3 to give a white precipiate which is soluble in excess ammonia
• C. They explode when in contact with dry ammonia
• D. They react with concentrated tetraoxosulphate (IV) acid to give white fumes of chlorine gas

Sulphur burns in air to form

• A. an acidic oxide
• B. a basic oxide
• C. an amphoteric oxide
• D. a neutra oxide

Alkanals can be differentiated from alkanones by reaction with?

• A. 2,4-dinitrophenylhydrazine
• B. hydrogen cyanide
• C. sodium hydrogen sulphite
• D. Tollen's reagent

Stainless steel is an alloy comprising of

• A. Fe and C
• B. Fe and Ni
• C. Fe, C and Ni
• D. Fe, C and Al

Burning magnesium ribbon in air removes which of the following (i) oxygen (ii) nitrogen (iii) argon and (iv) carbon(iv)oxide?

• A) i and iv only
• B) i, ii, iii and iv only
• C) i only
• D) i and ii only

A cycloalkane with the molecular formula C₅H₁₀ has ?

• A. one isomer
• B. two isomers
• C. three isomers
• D. four isomers