11. THE P-BLOCK ELEMENTS
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11. THE P-BLOCK ELEMENTS

189795 Which of the following does not changes the density of \(SiC\) solid

1 By substitution of some \(Si\) atoms by some carbon atoms
2 Vacancy defect
3 By substitution of \("Si"\) or \("C"\) by \("Ge"\)
4 By interchanging position of \(Si\) and \(C -atoms\)
11. THE P-BLOCK ELEMENTS

189796 In the reaction \(SnCl_2(excess)+HgCl_2\ \rightarrow\ A+SnCl_4\), '\(A\)' is

1 \(Hg_2Cl_2\)
2 \(Hg\)
3 \(HgCl\)
4 \(HgCl_3\)
11. THE P-BLOCK ELEMENTS

189860 In \(B_2H_6\)

1 there is direct boron-boron bond
2 the \(B—H\) bonds are ionic
3 it is isostructural to \(C_2H_6\)
4 boron atoms are linked through hydrogen bridges
11. THE P-BLOCK ELEMENTS

189861 Which of the following unit is used to form cross linked silicone ?

1 \(RSiCl_3\)
2 \(R_2SiCl_2\)
3 \(R_3SiCl\)
4 All
11. THE P-BLOCK ELEMENTS

189862 Methanides are

1 \(Mg_2\,C_3,Be_2\,C, Al_4\,C_3\) and \(CaC_2\)
2 \(Mg_2\,C_3, Be_2\,C\) and \(Al_4\,C_3\)
3 \(Be_2\,C, Al_4\,C_3\) and \(CaC_2\)
4 \(Be_2\,C\) and \(Al_4\,C_3\)
NEET DIGITAL LIBRARY
11. THE P-BLOCK ELEMENTS

189795 Which of the following does not changes the density of \(SiC\) solid

1 By substitution of some \(Si\) atoms by some carbon atoms
2 Vacancy defect
3 By substitution of \("Si"\) or \("C"\) by \("Ge"\)
4 By interchanging position of \(Si\) and \(C -atoms\)
11. THE P-BLOCK ELEMENTS

189796 In the reaction \(SnCl_2(excess)+HgCl_2\ \rightarrow\ A+SnCl_4\), '\(A\)' is

1 \(Hg_2Cl_2\)
2 \(Hg\)
3 \(HgCl\)
4 \(HgCl_3\)
11. THE P-BLOCK ELEMENTS

189860 In \(B_2H_6\)

1 there is direct boron-boron bond
2 the \(B—H\) bonds are ionic
3 it is isostructural to \(C_2H_6\)
4 boron atoms are linked through hydrogen bridges
11. THE P-BLOCK ELEMENTS

189861 Which of the following unit is used to form cross linked silicone ?

1 \(RSiCl_3\)
2 \(R_2SiCl_2\)
3 \(R_3SiCl\)
4 All
11. THE P-BLOCK ELEMENTS

189862 Methanides are

1 \(Mg_2\,C_3,Be_2\,C, Al_4\,C_3\) and \(CaC_2\)
2 \(Mg_2\,C_3, Be_2\,C\) and \(Al_4\,C_3\)
3 \(Be_2\,C, Al_4\,C_3\) and \(CaC_2\)
4 \(Be_2\,C\) and \(Al_4\,C_3\)
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11. THE P-BLOCK ELEMENTS

189795 Which of the following does not changes the density of \(SiC\) solid

1 By substitution of some \(Si\) atoms by some carbon atoms
2 Vacancy defect
3 By substitution of \("Si"\) or \("C"\) by \("Ge"\)
4 By interchanging position of \(Si\) and \(C -atoms\)
11. THE P-BLOCK ELEMENTS

189796 In the reaction \(SnCl_2(excess)+HgCl_2\ \rightarrow\ A+SnCl_4\), '\(A\)' is

1 \(Hg_2Cl_2\)
2 \(Hg\)
3 \(HgCl\)
4 \(HgCl_3\)
11. THE P-BLOCK ELEMENTS

189860 In \(B_2H_6\)

1 there is direct boron-boron bond
2 the \(B—H\) bonds are ionic
3 it is isostructural to \(C_2H_6\)
4 boron atoms are linked through hydrogen bridges
11. THE P-BLOCK ELEMENTS

189861 Which of the following unit is used to form cross linked silicone ?

1 \(RSiCl_3\)
2 \(R_2SiCl_2\)
3 \(R_3SiCl\)
4 All
11. THE P-BLOCK ELEMENTS

189862 Methanides are

1 \(Mg_2\,C_3,Be_2\,C, Al_4\,C_3\) and \(CaC_2\)
2 \(Mg_2\,C_3, Be_2\,C\) and \(Al_4\,C_3\)
3 \(Be_2\,C, Al_4\,C_3\) and \(CaC_2\)
4 \(Be_2\,C\) and \(Al_4\,C_3\)
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11. THE P-BLOCK ELEMENTS

189795 Which of the following does not changes the density of \(SiC\) solid

1 By substitution of some \(Si\) atoms by some carbon atoms
2 Vacancy defect
3 By substitution of \("Si"\) or \("C"\) by \("Ge"\)
4 By interchanging position of \(Si\) and \(C -atoms\)
11. THE P-BLOCK ELEMENTS

189796 In the reaction \(SnCl_2(excess)+HgCl_2\ \rightarrow\ A+SnCl_4\), '\(A\)' is

1 \(Hg_2Cl_2\)
2 \(Hg\)
3 \(HgCl\)
4 \(HgCl_3\)
11. THE P-BLOCK ELEMENTS

189860 In \(B_2H_6\)

1 there is direct boron-boron bond
2 the \(B—H\) bonds are ionic
3 it is isostructural to \(C_2H_6\)
4 boron atoms are linked through hydrogen bridges
11. THE P-BLOCK ELEMENTS

189861 Which of the following unit is used to form cross linked silicone ?

1 \(RSiCl_3\)
2 \(R_2SiCl_2\)
3 \(R_3SiCl\)
4 All
11. THE P-BLOCK ELEMENTS

189862 Methanides are

1 \(Mg_2\,C_3,Be_2\,C, Al_4\,C_3\) and \(CaC_2\)
2 \(Mg_2\,C_3, Be_2\,C\) and \(Al_4\,C_3\)
3 \(Be_2\,C, Al_4\,C_3\) and \(CaC_2\)
4 \(Be_2\,C\) and \(Al_4\,C_3\)
NEET DIGITAL LIBRARY
11. THE P-BLOCK ELEMENTS

189795 Which of the following does not changes the density of \(SiC\) solid

1 By substitution of some \(Si\) atoms by some carbon atoms
2 Vacancy defect
3 By substitution of \("Si"\) or \("C"\) by \("Ge"\)
4 By interchanging position of \(Si\) and \(C -atoms\)
11. THE P-BLOCK ELEMENTS

189796 In the reaction \(SnCl_2(excess)+HgCl_2\ \rightarrow\ A+SnCl_4\), '\(A\)' is

1 \(Hg_2Cl_2\)
2 \(Hg\)
3 \(HgCl\)
4 \(HgCl_3\)
11. THE P-BLOCK ELEMENTS

189860 In \(B_2H_6\)

1 there is direct boron-boron bond
2 the \(B—H\) bonds are ionic
3 it is isostructural to \(C_2H_6\)
4 boron atoms are linked through hydrogen bridges
11. THE P-BLOCK ELEMENTS

189861 Which of the following unit is used to form cross linked silicone ?

1 \(RSiCl_3\)
2 \(R_2SiCl_2\)
3 \(R_3SiCl\)
4 All
11. THE P-BLOCK ELEMENTS

189862 Methanides are

1 \(Mg_2\,C_3,Be_2\,C, Al_4\,C_3\) and \(CaC_2\)
2 \(Mg_2\,C_3, Be_2\,C\) and \(Al_4\,C_3\)
3 \(Be_2\,C, Al_4\,C_3\) and \(CaC_2\)
4 \(Be_2\,C\) and \(Al_4\,C_3\)