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Packing constituents in ..



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Q1. The smallest portion of a crystal which when repeated in different directions generates the entire crystal is called:

(a) Lattice points
(b) Crystal lattice
(c) Unit cell
(d) None of the mentioned

Q2. Which of the following is not a property of metal glass?

(a) Transparent
(b) Poor thermal conductivity
(c) High magnetic susceptibility
(d) None of the mentioned

Q3. The smallest portion of a crystal which when repeated in different directions generates the entire crystal is called:

(a) Lattice points
(b) Crystal lattice
(c) Unit cell
(d) None of the mentioned

Q4. Which of the following is a crystalline solid?

(a) Copper wire
(b) Glass bottle
(c) Polythene bag
(d) Rubber ball

Q5. Which of the following is a property of amorphous solids?

(a) Sharp melting point
(b) Isotropy
(c) Long range order
(d) Definite heat of fusion

Q6. An octahedral void is surrounded by:

(a) 8 atoms
(b) 18 atoms
(c) 6 atoms
(d) 16 atoms

Q7. HCP and BCC are called close-packed structures. Close packed structures have:

(a) Highest packing efficiency
(b) Highest void fraction
(c) Highest density
(d) All of the mentioned

Q8. Packing efficiency of a crystal structure is the ratio of:

(a) Volume occupied by particles to the total volume of the unit cell
(b) Volume occupied by particles to that by voids
(c) Total volume of the unit cell to the volume occupied by particles
(d) Volume occupied by voids to that by particles

Q9. Co-ordination number of a crystalline solid is:

(a) Number of particles in the unit cell
(b) Number of nearest neighbours of a particle
(c) Number of octahedral voids in a unit cell
(d) Number of tetrahedral voids in a unit cell

Q10. Allotropes differ in which of the following properties:

(a) Atomic Number
(b) Atomic Mass
(c) Crystal Structure
(d) Electronegativity


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In A Closed Flask Of 5 Litres, 1.0 G Of H2 Is Headed From 300 To 600 K. Which Statement Is Not Correct

Modified 237 Year Ago

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237 Year Ago

In A Closed Flask Of 5 Litres, 1.0 G Of H2 Is Headed From 300 To 600 K. Which Statement Is Not Correct

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439 views

Equal Amounts Of Two Gases Of Molecular Weight 4 And 40 Are Mixed. The Pressure Of The Mixture Is 1.1 Atm. The Partial Pressure Of The Light Gas In This Mixture Is

Modified 237 Year Ago

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237 Year Ago

Equal Amounts Of Two Gases Of Molecular Weight 4 And 40 Are Mixed. The Pressure Of The Mixture Is 1.1 Atm. The Partial Pressure Of The Light Gas In This Mixture Is

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Assertion : Effusion Rate Of Oxygen Is Smaller Than Nitrogen. Reason : Molecular Size Of Nitrogen Is Smaller Than Oxygen.

Modified 237 Year Ago

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237 Year Ago

Assertion : Effusion Rate Of Oxygen Is Smaller Than Nitrogen. Reason : Molecular Size Of Nitrogen Is Smaller Than Oxygen.

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Molecules/ions And Their Magnetic Properties Are Given Below

Modified 237 Year Ago

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237 Year Ago

Molecules/ions And Their Magnetic Properties Are Given Below

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Assertion : We Air Is Heavier Than Dry Air. Reason : The Density Of A Dry Air Is More Than Density Of Water.

Modified 237 Year Ago

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237 Year Ago

Assertion : We Air Is Heavier Than Dry Air. Reason : The Density Of A Dry Air Is More Than Density Of Water.

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Assertion : 4.58mm And 0.0098°C Is Known To Be Triple Point Of Water. Reason : At This Pressure And Temperature All The Three States I.e., Water, Ice And Vapour Exist Simultaneously.

Modified 237 Year Ago

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237 Year Ago

Assertion : 4.58mm And 0.0098°C Is Known To Be Triple Point Of Water. Reason : At This Pressure And Temperature All The Three States I.e., Water, Ice And Vapour Exist Simultaneously.

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0 Answer
395 views

In Van Der Waals Equation Of State Of The Gas Law, The

Modified 298 Year Ago

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298 Year Ago

In Van Der Waals Equation Of State Of The Gas Law, The

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