Chemistry · JEE

Periodic trends in properties of elements: atomic and ionic radii, ionization enthalpy, electron gain enthalpy, valence, oxidation states and chemical reactivity Mock Test for JEE

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Part of Classification of Elements and Periodicity in Properties in JEE Main Chemistry.

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Q1ChemistryUnit 9: Classification of Elements and Periodicity in Properties

Due to diagonal relationship between Be and

A l

Q2ChemistryUnit 9: Classification of Elements and Periodicity in Properties

Assertion Metallic character increases from left to right in a period. Reason The higher the value of ionization energy, electronegativity and electron affinity the more is the metallic character of the element.

Q3ChemistryUnit 9: Classification of Elements and Periodicity in Properties

Sodium forms

N a^{+}

ion but it doesnot form

N a^{2+}

because of

Q4ChemistryUnit 9: Classification of Elements and Periodicity in Properties

Identify the position of the elements having outer electronic configuration

n s^{2} n p^{5}

for

n=3

Q5ChemistryUnit 9: Classification of Elements and Periodicity in Properties

The element having the least size from the following is :

Q6ChemistryUnit 9: Classification of Elements and Periodicity in Properties

Only those elements of s-block can produce superoxides which have :

Q7ChemistryUnit 9: Classification of Elements and Periodicity in Properties

Select the correct order of ions with respect to their ionic radii.

Q8ChemistryUnit 9: Classification of Elements and Periodicity in Properties

Which of the following is brittle at low temperature?

Q9ChemistryUnit 9: Classification of Elements and Periodicity in Properties

Which statement explains why elements in Group VIII of the Periodic Table are unreactive?

Q10ChemistryUnit 9: Classification of Elements and Periodicity in Properties

Brittleness is a characteristic property of:

Q11ChemistryUnit 9: Classification of Elements and Periodicity in Properties

Following statements regarding the periodic trends of chemical reactivity of alkali metals and the halogens are given.Which of these statements give the correct picture?

Q12ChemistryUnit 9: Classification of Elements and Periodicity in Properties

lonization potential in a period is lowest for:

Q13ChemistryUnit 9: Classification of Elements and Periodicity in Properties

A fire work gave bright crimson light. It probably contained a salt of

Q14ChemistryUnit 9: Classification of Elements and Periodicity in Properties

Assertion Sodium metal is stored under Kerosene. Reason Metallic sodium melts when exposed to air.

Q15ChemistryUnit 9: Classification of Elements and Periodicity in Properties

Thermal stability of

B a C O_{3}, C a C O_{3}

and

M g C O_{3}

is:

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