11925
Which of the following compounds are covalent
1 \({H_2}\)
2 \(CaO\)
3 \(KCl\)
4 \(N{a_2}S\)
Explanation:
(a)Two identical atoms are joined with covalent bond so \({H_2}\) will be covalent.
Chemical Bonding and Molecular Structure
11926
Indicate the nature of bonding in \(CC{l_4}\) and \(Ca{H_2}\)
1 Covalent in \(CC{l_4}\) and electrovalent in \(Ca{H_2}\)
2 Electrovalent in both \(CC{l_4}\) and \(Ca{H_2}\)
3 Covalent in both \(CC{l_4}\) and \(Ca{H_2}\)
4 Electrovalent in \(CC{l_4}\) and covalent in \(Ca{H_2}\)
Explanation:
\(Ca ^{+2}\) forms two ionic bonds with \(H ^{-}\)ion. While in \(CCl _4\), carbon forms \(4\) covalent bonds with four hydrogen atoms.
Chemical Bonding and Molecular Structure
11927
If the atomic number of element \(X\) is \(7,\) the best electron dot symbol for the element is
1 \(X\,\,.\)
2 \(.\,\,X\,\,.\)
3 \(.\,\,\mathop X\limits_.^. \,\,:\)
4 \(:\,\,\mathop X\limits_{.\,.}^{.\,.} \,\,.\)
Explanation:
(c)Element \(‘X’\) has atomic no. \(7\) so its electronic configuration will be \(2, 5.\) So its electron dot symbol would be \(:\mathop {\mathop X\limits^. }\limits_. .\)
Chemical Bonding and Molecular Structure
11928
Which is the most covalent
1 \(C - O\)
2 \(C - Br\)
3 \(C - S\)
4 \(C - F\)
Explanation:
(c) \(C-S\) will be most covalent. Covalent character depend on the size of cation and anion.
11925
Which of the following compounds are covalent
1 \({H_2}\)
2 \(CaO\)
3 \(KCl\)
4 \(N{a_2}S\)
Explanation:
(a)Two identical atoms are joined with covalent bond so \({H_2}\) will be covalent.
Chemical Bonding and Molecular Structure
11926
Indicate the nature of bonding in \(CC{l_4}\) and \(Ca{H_2}\)
1 Covalent in \(CC{l_4}\) and electrovalent in \(Ca{H_2}\)
2 Electrovalent in both \(CC{l_4}\) and \(Ca{H_2}\)
3 Covalent in both \(CC{l_4}\) and \(Ca{H_2}\)
4 Electrovalent in \(CC{l_4}\) and covalent in \(Ca{H_2}\)
Explanation:
\(Ca ^{+2}\) forms two ionic bonds with \(H ^{-}\)ion. While in \(CCl _4\), carbon forms \(4\) covalent bonds with four hydrogen atoms.
Chemical Bonding and Molecular Structure
11927
If the atomic number of element \(X\) is \(7,\) the best electron dot symbol for the element is
1 \(X\,\,.\)
2 \(.\,\,X\,\,.\)
3 \(.\,\,\mathop X\limits_.^. \,\,:\)
4 \(:\,\,\mathop X\limits_{.\,.}^{.\,.} \,\,.\)
Explanation:
(c)Element \(‘X’\) has atomic no. \(7\) so its electronic configuration will be \(2, 5.\) So its electron dot symbol would be \(:\mathop {\mathop X\limits^. }\limits_. .\)
Chemical Bonding and Molecular Structure
11928
Which is the most covalent
1 \(C - O\)
2 \(C - Br\)
3 \(C - S\)
4 \(C - F\)
Explanation:
(c) \(C-S\) will be most covalent. Covalent character depend on the size of cation and anion.
11925
Which of the following compounds are covalent
1 \({H_2}\)
2 \(CaO\)
3 \(KCl\)
4 \(N{a_2}S\)
Explanation:
(a)Two identical atoms are joined with covalent bond so \({H_2}\) will be covalent.
Chemical Bonding and Molecular Structure
11926
Indicate the nature of bonding in \(CC{l_4}\) and \(Ca{H_2}\)
1 Covalent in \(CC{l_4}\) and electrovalent in \(Ca{H_2}\)
2 Electrovalent in both \(CC{l_4}\) and \(Ca{H_2}\)
3 Covalent in both \(CC{l_4}\) and \(Ca{H_2}\)
4 Electrovalent in \(CC{l_4}\) and covalent in \(Ca{H_2}\)
Explanation:
\(Ca ^{+2}\) forms two ionic bonds with \(H ^{-}\)ion. While in \(CCl _4\), carbon forms \(4\) covalent bonds with four hydrogen atoms.
Chemical Bonding and Molecular Structure
11927
If the atomic number of element \(X\) is \(7,\) the best electron dot symbol for the element is
1 \(X\,\,.\)
2 \(.\,\,X\,\,.\)
3 \(.\,\,\mathop X\limits_.^. \,\,:\)
4 \(:\,\,\mathop X\limits_{.\,.}^{.\,.} \,\,.\)
Explanation:
(c)Element \(‘X’\) has atomic no. \(7\) so its electronic configuration will be \(2, 5.\) So its electron dot symbol would be \(:\mathop {\mathop X\limits^. }\limits_. .\)
Chemical Bonding and Molecular Structure
11928
Which is the most covalent
1 \(C - O\)
2 \(C - Br\)
3 \(C - S\)
4 \(C - F\)
Explanation:
(c) \(C-S\) will be most covalent. Covalent character depend on the size of cation and anion.
11925
Which of the following compounds are covalent
1 \({H_2}\)
2 \(CaO\)
3 \(KCl\)
4 \(N{a_2}S\)
Explanation:
(a)Two identical atoms are joined with covalent bond so \({H_2}\) will be covalent.
Chemical Bonding and Molecular Structure
11926
Indicate the nature of bonding in \(CC{l_4}\) and \(Ca{H_2}\)
1 Covalent in \(CC{l_4}\) and electrovalent in \(Ca{H_2}\)
2 Electrovalent in both \(CC{l_4}\) and \(Ca{H_2}\)
3 Covalent in both \(CC{l_4}\) and \(Ca{H_2}\)
4 Electrovalent in \(CC{l_4}\) and covalent in \(Ca{H_2}\)
Explanation:
\(Ca ^{+2}\) forms two ionic bonds with \(H ^{-}\)ion. While in \(CCl _4\), carbon forms \(4\) covalent bonds with four hydrogen atoms.
Chemical Bonding and Molecular Structure
11927
If the atomic number of element \(X\) is \(7,\) the best electron dot symbol for the element is
1 \(X\,\,.\)
2 \(.\,\,X\,\,.\)
3 \(.\,\,\mathop X\limits_.^. \,\,:\)
4 \(:\,\,\mathop X\limits_{.\,.}^{.\,.} \,\,.\)
Explanation:
(c)Element \(‘X’\) has atomic no. \(7\) so its electronic configuration will be \(2, 5.\) So its electron dot symbol would be \(:\mathop {\mathop X\limits^. }\limits_. .\)
Chemical Bonding and Molecular Structure
11928
Which is the most covalent
1 \(C - O\)
2 \(C - Br\)
3 \(C - S\)
4 \(C - F\)
Explanation:
(c) \(C-S\) will be most covalent. Covalent character depend on the size of cation and anion.
