NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 707 - 714 of 1258

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Question number: 707

» Basic Concepts in Chemistry » Mole Concept

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MCQ▾

Question

If Molecules are removed from then number of moles of left are?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 708

» Basic Concepts in Chemistry » Concept of Atom, Molecule, Element and Compound

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MCQ▾

Question

A pure substance which contain only one type of atoms is called?

Choices

Choice (4)Response

a.

A solid

b.

An element

c.

A compound

d.

A liquid

Question number: 709

» Chemical Bonding » Ionic Bonding » Formation of Ionic Bonds

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Appeared in Year: 2016

MCQ▾

Question

In context with beryllium, which one of the following statements is incorrect?

Choices

Choice (4)Response

a.

It forms Be2C

b.

Its salts rarely hydrolyze.

c.

It is rendered passive by nitric acid

d.

Its hydride is electron-deficient and polymeric.

Question number: 710

» Basic Concepts in Chemistry » Concept of Atom, Molecule, Element and Compound

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MCQ▾

Question

The density of a liquid is . There are 35 drops in 2ml. The number of molecules in 1 drop is if molecular mass of liquid is 70?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 711

» Basic Concepts in Chemistry » Concept of Atom, Molecule, Element and Compound

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MCQ▾

Question

A macromolecule of iron has molar mass 2800 amu. It contains 8 % iron by mass. The number of iron atom, in one formula unit of the macromolecule is?

Choices

Choice (4)Response

a.

6 atoms

b.

4 atoms

c.

2 atoms

d.

8 atoms

Question number: 712

» Basic Concepts in Chemistry » Physical Quantities and Measurements

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MCQ▾

Question

If the volume occupied in a crystal by a molecule of Calculate the volume of the crystal weighing ?

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 713

» Atomic Structure » Rules for Filling Electrons in Orbitals

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MCQ▾

Question

What is the total number of orbitals in the shell to which the subshell first arise?

Choices

Choice (4)Response

a.

25

b.

9

c.

20

d.

16

Question number: 714

» Atomic Structure » De-Broglie's Relationship

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MCQ▾

Question

If the kinetic energy of particle is doubled, de-Broglie wavelength becomes?

Choices

Choice (4)Response

a.

b.

c.

d.

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