IIT%20JEE/IIT%20JEE%20%20Chemistry%20Of%20Representative%20Elements Sample Test,Sample questions

Question:
.Alkaline earth metal that resembles aluminium more than its congeners is

1.Be

2.Mg

3.Ca

4.Sr

Posted Date:-2021-10-04 18:13:51


Question:
.Among the following the most stable hydride is

1.NaOH

2.LiH

3.KH

4.RbH.

Posted Date:-2021-10-04 18:13:51


Question:
.Lithium shows diagonal relationship with

1.Beryllium

2.Sodium

3.Magnesium

4.Calcium.

Posted Date:-2021-10-04 18:13:51


Question:
.Which among the following is insoluble in water?

1.LiOH

2.NaOH

3.KOH

4.RbOH.

Posted Date:-2021-10-04 18:13:51


Question:
.Which of the following elements has the highest density?

1.Mg

2.Na

3.K

4.Rb.

Posted Date:-2021-10-04 18:13:51


Question:
.Which of the following halides has the maximum covalent character ?

1.CsI

2.KI

3.NaI

4.LiI.

Posted Date:-2021-10-04 18:13:51


Question:
.Which of the following metals has the highest melting point?

1.Li

2.Be

3.Na

4.Mg.

Posted Date:-2021-10-04 18:13:51


Question:
.Which of the following oxides is amphoteric ?CaO

1.CaO

2.BaO

3.BeO

4.MgO.

Posted Date:-2021-10-04 18:13:51


Question:
A fire-work gives green colour. It possibly contains some salt of

1.Calcium

2.Barium

3.Strontium

4.Potassium.

Posted Date:-2021-10-04 18:13:51


Question:
Alcohol dissolves in

1.LiCl

2.NaCl

3.KCl

4.RbCl.

Posted Date:-2021-10-04 18:13:51


Question:
Natural gas is the richest source of

1.Helium

2.Neon

3.Argon

4.Xenon.

Posted Date:-2021-10-04 18:13:51


Question:
Potassium crystallizes in a body centred lattice. Hence the coordination number of potassium is

1.6

2.8

3.4

4.12

Posted Date:-2021-10-04 18:13:51


Question:
Sapphire is a mineral of

1.Mg

2.Al

3.B

4.Au.

Posted Date:-2021-10-04 18:13:51


Question:
The alkali metal that reacts with nitrogen directly to form nitride is

1.Na

2.K

3.Rb

4.Li.

Posted Date:-2021-10-04 18:13:51


Question:
The alkali metal with highest melting point is

1.K

2.Na

3.Cs

4.Li.

Posted Date:-2021-10-04 18:13:51


Question:
The colour imparted by lithium to the flame is

1.Golden yellow

2.Grassy green

3.Violet

4.Red.

Posted Date:-2021-10-04 18:13:51


Question:
The lightest alkali metal is

1.Lithium

2.Sodium

3.Rubidium

4.Caesium.

Posted Date:-2021-10-04 18:13:51


Question:
The most easily polarisable noble gas is

1.Krypton

2.Xenon

3.Helium

4.Argon.

Posted Date:-2021-10-04 18:13:51


Question:
The most reactive alkali metal among the following is

1.Li

2.Na

3.Rb

4.Cs.

Posted Date:-2021-10-04 18:13:51


Question:
What is true about the oxoacids of halogens.

1.All of them are good reducing agents

2.All of them are monobasic

3.They may be monobasic as well as polybasic

4.They have general formula HXO.

Posted Date:-2021-10-04 18:13:51


Question:
When calcium is heated in the flame of a Bunsen burner the colour imparted to the flame is

1.Golden yellow

2.Brick red

3.Crimson red

4.Grassy green.

Posted Date:-2021-10-04 18:13:51


Question:
Which among the following is least soluble in water?

1.NaF

2.KF

3.LiF

4.CsF.

Posted Date:-2021-10-04 18:13:51


Question:
Which halogen forms interhalogen compound but does not form polyhalide ion?

1.Fluorine

2.Bromine

3.Iodine

4.All of the above.

Posted Date:-2021-10-04 18:13:51


Question:
Which hydroxide decomposes on heating?

1.NaOH

2.KOH

3.LiOH

4.RbOH.

Posted Date:-2021-10-04 18:13:51


Question:
Which of the following compounds has maximum covalent character?

1.LiF

2.LiCl

3.NaCl

4.CsCl.

Posted Date:-2021-10-04 18:13:51


Question:
Which of the following compounds has the highest melting point?

1.LiCl

2.NaCl

3.KCl

4.CsCl.

Posted Date:-2021-10-04 18:13:51


Question:
Which of the following does not contain iodine.

1.Tincture iodine

2.Caliche

3.Sea weeds

4.Carnallite.

Posted Date:-2021-10-04 18:13:51


Question:
Which of the following halogen is called super halogen?

1.Fluorine

2.Chlorine

3.Iodine

4.Bromine.

Posted Date:-2021-10-04 18:13:51


Question:
Which of the following is the most abundant alkaline earth metal?

1.Be

2.Mg

3.Ca

4.Sr.

Posted Date:-2021-10-04 18:13:51


Question:
Which of the following is the strongest reducing agent?

1.Be

2.Mg

3.Ca

4.Sr.

Posted Date:-2021-10-04 18:13:51


Question:
Which of the following is the weakest base ?

1.KOH

2.NaOH

3.LiOH

4.RbOH.

Posted Date:-2021-10-04 18:13:51


Question:
Which of the following metals on reaction with excess oxygen forms superoxide?

1.Li

2.Na

3.Mg

4.K.

Posted Date:-2021-10-04 18:13:51


Question:
Which of the following reacts with excess oxygen to forma normal oxide?

1.Li

2.Na

3.K

4.Rb.

Posted Date:-2021-10-04 18:13:51


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