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प्रश्न
Classify the following solid:
Pb
विकल्प
Molecular solid
Ionic solid
Covalent solid
Metallic solid
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उत्तर
Metallic solid
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संबंधित प्रश्न
The major binding force in diamond is_______________ .
(a) Covalent bond
(b) Ionic bond
(c) Metallic bond
(d) Co-ordinate covalent bond
An ionic compound crystallises in FCC type structure with ‘A’ ions at the centre of each face and ‘B’ ions occupying corners of the cube. The formula of compound is _______.
Define Anisotropy.
Sodium crystallizes in bcc structure. If the edge length of unit cell is 4.3 × 10-8 cm, the radius of Na atom is ______.
A compound crystallizes in bcc structure. What is unit cell edge length if diameter of its atom is 120 pm?
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Solid CO2 is an example of ____________.
Assertion: monoclinic sulphur is an example of a monoclinic crystal system
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In calcium fluoride, having the flurite structure the coordination number of Ca2+ ion and F− Ion are ____________.
Define unit cell.
If NaCl is doped with 10−2 mol percentage of strontium chloride, what is the concentration of cation vacancy?
Select the INCORRECT match:
____________ is an example of molecular crystal.
Which among the following is NOT a polar molecular solid?
The hardest substance among the following is:
An AB2 type structure is found in ____________.
An excess of potassium ions makes KCl crystals appear violet or lilac in colour since:
(i) some of the anionic sites are occupied by an unpaired electron.
(ii) some of the anionic sites are occupied by a pair of electrons.
(iii) there are vacancies at some anionic sites.
(iv) F-centres are created which impart colour to the crystals.
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The major binding force in diamond, silicon and quartz is ______.
A reddish-pink substance on heating gives off a vapour which condenses on the sides of the test tube and the substance turns blue. If on cooling water is added to the residue it turns to original colour. The substance is ______.
Which of the following is not correct?
Graphite is a ______.
Mention the res of the following solid:
CO2
