NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 981 - 984 of 1259

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Question number: 981

» Classification of Elements & Periodicity » Present Form of the Periodic Table

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MCQ▾

Question

The statement that is not correct for periodic classification of element is?

Choices

Choice (4)Response

a.

For transition elements, the 3d – orbitals are filled with electrons after 3p – orbitals and before 4s – orbitals.

b.

Non – metallic elements are less in number than metallic elements

c.

63 elements were known when Mendeleev presented the periodic table

d.

The properties of the elements are periodic function of their atomic number

Question number: 982

» Equilibrium » Ionic Equilibrium » Solubility Products

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Question

In a saturated solution of electrolytes, the ionic products of their concentration are constant at a particular temperature. This constant for an electrolyte is known as?

Choices

Choice (4)Response

a.

Dissociation Constant

b.

Ionization constant

c.

Ionic product

d.

Solubility product

Question number: 983

» Equilibrium » Ionic Equilibrium » Solubility Products

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Question

The solubility product of sparingly soluble salt is . The molar solubility of the salt is?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 984

» Surface Chemistry » Colloidal State » Preparation and Properties of Colloids

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MCQ▾

Question

The stability of lyophobic colloids is due to?

Choices

Choice (4)Response

a.

A layer of medium of dispersion on their particles

b.

Smaller size of their particles

c.

Large size of their particles

d.

Charge on their particles

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