NEET Test Series from KOTA - 10 Papers In MS WORD
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2 RBTS PAPER
160821
Which of the following species has tetrahedral shape?
1 $\mathrm{BH}_4^{-}$
2 $\mathrm{NH}_2^{-}$
3 $\mathrm{CO}_3{ }^{2-}$
4 $\mathrm{H}_3 \mathrm{O}^{+}$
Explanation:
The geometry of $\mathrm{BH}_4{ }^{-}$is tetrahedral. $\mathrm{NH}_2{ }^{-}$has V-shape, $\mathrm{CO}_3{ }^{2-}$ has trigonal planar and $\mathrm{H}_3 \mathrm{O}^{+}$has pyramidal shape.
Mod. NEET
2 RBTS PAPER
160822
In which of the following species the bonds are non-directional :
1 $\mathrm{NCl}_3$
2 $\mathrm{RbCl}$
3 $\mathrm{BeCl}_2$
4 $\mathrm{BCl}_3$
Explanation:
Ionic and metallic bonds are non directional.
NCERT 102
2 RBTS PAPER
160823
Most ionic compounds have :
1 high melting points and low boiling points
2 high melting points and nondirectional bonds
3 high solubilities in nonpolar solvents and low solubilities in polar solvents
4 three-dimensional network structures, and are good conductors of electricity in the solid state
Explanation:
Ionic compounds have high M.P. and B.P, soluble in polar solvents, have non directional bond.
NCERT 102
2 RBTS PAPER
160824
A sigma bond may be formed by the overlap of 2 atomic orbitals of atoms $A$ and $B$. If the bond is formed along as the $x$-axis, which of the following overlaps is acceptable?
1 $s$ orbital of $A$ and $p_z$ orbital of $A$
2 $p_x$ orbital of $A$ and $p_y$ orbital of $B$
3 $p_z$ orbital of $A$ and $p_x$ orbital of $B$
4 $p_x$ orbital of $A$ and $s$ orbital of $B$
Explanation:
If $\mathrm{x}$ is the molecular axis following combinations are possible - i. S-Px ii. $P x-P x$ iii. $S-S$ iv. Py-Py v. $\mathrm{Pz}-\mathrm{Pz}$
160821
Which of the following species has tetrahedral shape?
1 $\mathrm{BH}_4^{-}$
2 $\mathrm{NH}_2^{-}$
3 $\mathrm{CO}_3{ }^{2-}$
4 $\mathrm{H}_3 \mathrm{O}^{+}$
Explanation:
The geometry of $\mathrm{BH}_4{ }^{-}$is tetrahedral. $\mathrm{NH}_2{ }^{-}$has V-shape, $\mathrm{CO}_3{ }^{2-}$ has trigonal planar and $\mathrm{H}_3 \mathrm{O}^{+}$has pyramidal shape.
Mod. NEET
2 RBTS PAPER
160822
In which of the following species the bonds are non-directional :
1 $\mathrm{NCl}_3$
2 $\mathrm{RbCl}$
3 $\mathrm{BeCl}_2$
4 $\mathrm{BCl}_3$
Explanation:
Ionic and metallic bonds are non directional.
NCERT 102
2 RBTS PAPER
160823
Most ionic compounds have :
1 high melting points and low boiling points
2 high melting points and nondirectional bonds
3 high solubilities in nonpolar solvents and low solubilities in polar solvents
4 three-dimensional network structures, and are good conductors of electricity in the solid state
Explanation:
Ionic compounds have high M.P. and B.P, soluble in polar solvents, have non directional bond.
NCERT 102
2 RBTS PAPER
160824
A sigma bond may be formed by the overlap of 2 atomic orbitals of atoms $A$ and $B$. If the bond is formed along as the $x$-axis, which of the following overlaps is acceptable?
1 $s$ orbital of $A$ and $p_z$ orbital of $A$
2 $p_x$ orbital of $A$ and $p_y$ orbital of $B$
3 $p_z$ orbital of $A$ and $p_x$ orbital of $B$
4 $p_x$ orbital of $A$ and $s$ orbital of $B$
Explanation:
If $\mathrm{x}$ is the molecular axis following combinations are possible - i. S-Px ii. $P x-P x$ iii. $S-S$ iv. Py-Py v. $\mathrm{Pz}-\mathrm{Pz}$
160821
Which of the following species has tetrahedral shape?
1 $\mathrm{BH}_4^{-}$
2 $\mathrm{NH}_2^{-}$
3 $\mathrm{CO}_3{ }^{2-}$
4 $\mathrm{H}_3 \mathrm{O}^{+}$
Explanation:
The geometry of $\mathrm{BH}_4{ }^{-}$is tetrahedral. $\mathrm{NH}_2{ }^{-}$has V-shape, $\mathrm{CO}_3{ }^{2-}$ has trigonal planar and $\mathrm{H}_3 \mathrm{O}^{+}$has pyramidal shape.
Mod. NEET
2 RBTS PAPER
160822
In which of the following species the bonds are non-directional :
1 $\mathrm{NCl}_3$
2 $\mathrm{RbCl}$
3 $\mathrm{BeCl}_2$
4 $\mathrm{BCl}_3$
Explanation:
Ionic and metallic bonds are non directional.
NCERT 102
2 RBTS PAPER
160823
Most ionic compounds have :
1 high melting points and low boiling points
2 high melting points and nondirectional bonds
3 high solubilities in nonpolar solvents and low solubilities in polar solvents
4 three-dimensional network structures, and are good conductors of electricity in the solid state
Explanation:
Ionic compounds have high M.P. and B.P, soluble in polar solvents, have non directional bond.
NCERT 102
2 RBTS PAPER
160824
A sigma bond may be formed by the overlap of 2 atomic orbitals of atoms $A$ and $B$. If the bond is formed along as the $x$-axis, which of the following overlaps is acceptable?
1 $s$ orbital of $A$ and $p_z$ orbital of $A$
2 $p_x$ orbital of $A$ and $p_y$ orbital of $B$
3 $p_z$ orbital of $A$ and $p_x$ orbital of $B$
4 $p_x$ orbital of $A$ and $s$ orbital of $B$
Explanation:
If $\mathrm{x}$ is the molecular axis following combinations are possible - i. S-Px ii. $P x-P x$ iii. $S-S$ iv. Py-Py v. $\mathrm{Pz}-\mathrm{Pz}$
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
2 RBTS PAPER
160821
Which of the following species has tetrahedral shape?
1 $\mathrm{BH}_4^{-}$
2 $\mathrm{NH}_2^{-}$
3 $\mathrm{CO}_3{ }^{2-}$
4 $\mathrm{H}_3 \mathrm{O}^{+}$
Explanation:
The geometry of $\mathrm{BH}_4{ }^{-}$is tetrahedral. $\mathrm{NH}_2{ }^{-}$has V-shape, $\mathrm{CO}_3{ }^{2-}$ has trigonal planar and $\mathrm{H}_3 \mathrm{O}^{+}$has pyramidal shape.
Mod. NEET
2 RBTS PAPER
160822
In which of the following species the bonds are non-directional :
1 $\mathrm{NCl}_3$
2 $\mathrm{RbCl}$
3 $\mathrm{BeCl}_2$
4 $\mathrm{BCl}_3$
Explanation:
Ionic and metallic bonds are non directional.
NCERT 102
2 RBTS PAPER
160823
Most ionic compounds have :
1 high melting points and low boiling points
2 high melting points and nondirectional bonds
3 high solubilities in nonpolar solvents and low solubilities in polar solvents
4 three-dimensional network structures, and are good conductors of electricity in the solid state
Explanation:
Ionic compounds have high M.P. and B.P, soluble in polar solvents, have non directional bond.
NCERT 102
2 RBTS PAPER
160824
A sigma bond may be formed by the overlap of 2 atomic orbitals of atoms $A$ and $B$. If the bond is formed along as the $x$-axis, which of the following overlaps is acceptable?
1 $s$ orbital of $A$ and $p_z$ orbital of $A$
2 $p_x$ orbital of $A$ and $p_y$ orbital of $B$
3 $p_z$ orbital of $A$ and $p_x$ orbital of $B$
4 $p_x$ orbital of $A$ and $s$ orbital of $B$
Explanation:
If $\mathrm{x}$ is the molecular axis following combinations are possible - i. S-Px ii. $P x-P x$ iii. $S-S$ iv. Py-Py v. $\mathrm{Pz}-\mathrm{Pz}$