Lanthanoid's most common oxidation state is:
1. 2
2. 5 
3. 3 
4. 4

Which of the two species, NO₃⁻ or H₃O⁺, has the correctly described properties listed below?

The compound A on heating gives a colourless gas and a residue that is dissolved in water to obtain B. Excess of CO₂ is bubbled through an aqueous solution of B. C is solid. Solid C on gentle heating gives back A. The compound A is:

1. Na₂CO₃

2. K₂CO₃

3. CaSO₄.2H₂O

4. CaCO₃

Among the elements Ca, Mg, P and Cl, the correct order of increasing atomic radii is:
1. Cl < P < Mg < Ca
2. P < Cl < Ca < Mg
3. Ca < Mg < P < Cl
4. Mg < Ca < Cl < P

Identify the complex among the following that is not expected to exhibit isomerism:
 

1. [Pt(NH₃)₂Cl₂]

2. [Ni(NH₃)₂Cl₂]

3. [Ni(en)₃]²⁺

4. [Ni(NH₃)₄(H₂O)₂]²⁺

Which one of the following compounds will be most readily dehydrated?

1.		2.
3.		4.

Among the following four compounds

The acidity order is:

1. c > d > a > b

2. a > d > c > b

3. b > a > c > d

4. d > c > a > b

Fructose reduces Tollen's reagent due to:

Which of the following conformers for ethylene glycol is most stable?

The IUPAC name of  CH₃CH=CHC≡CH is:

1. Pent - 3 - en - 1 - yne

2. Pent - 2 - en - 4 - yne

3. Pent - 1 - yn - 3 - ene

4. Pent - 4 - yn - 2 – ene