The experts of jagranjosh.com have full confidence that you will not miss any of the questions in the board exam as well as in competitive exams from this chapter if you will keep the following terms / question in your mind while studying
Metallic solids and
(i) Hexagonal and monoclinic unit cells
(ii) Face-centred and end-centred unit cells.
impurity defects and
12-16 and 13-15 group compounds.
Q. Select the incorrect statement regarding crystalline and amorphous solids
a. Amorphous solids are of irregular shape
b. Crystalline solids are isotropic in nature
c. Amorphous solids soften over a range of temperature.
d. Crystalline solids have characteristic geometrical shape.
Q. Which of the following solid is covalent solid?
Q. A compound is formed by two elements A and B. The atoms of element A form hcp lattice and those of element B occupy 1/3 of the tetrahedral voids. The formula of the given compound is
Q. X-ray diffraction shows that an element crystallizes in a bcc unit cell with the cell edge of 2.55 × 10−8 cm. The density of the element is found to be 5.4 g cm−3.
a. 9.04 x 1023
b. 18.07 x 1023
c. 36.14 x 1023
d. 72.28 x 1023
Visit continuously in CBSE Section to Get SOLVED & UNSOLVED question papers, Sample papers, Practice papers, study material And Much More……
CBSE Class 12 Physical Education: 3 Marks questions expected to be asked in 2018 board exam
CBSE Class 12 Physical Education: 1 Mark questions expected to be asked in 2018 board exam
CBSE Class 12 Maths Board Exam 2018: Last minute tips to score maximum marks in the paper
CBSE Class 12 Maths Board Exam 2018: List of 6 marks questions expected to be asked this year