PH of a solution which contain CO is less than 7.
<u>Explanation:</u>
- Carbon monoxide(CO) is a non metallic oxide as carbon is a non-metal.
- Metallic and non metallic oxides differ in terms of their acidic or basic nature.
- Metallic oxides are usually basic in nature whereas on metallic oxides have acidic nature.
- Carbon monoxide CO has a slight acidic nature. Hence its PH value will be less than 7.
- In the PH scale,7 corresponds to neutral nature while values less than 7 indicate acidic nature and values greater than 7 indicate basic nature.
Answer:
Number of Significant Figures: 5
The Significant Figures are 1 1 0 0 5
Explanation:
<span>One mol of NaCl (6.02 x1023 formulas) has a mass of 58.44 g. Concept 2. The relation between molecular (formula) mass and molar mass. To obtain one mole of copper atoms (6.02 x 1023 atoms), weigh out 63.55 g copper.</span>
Answer: A) polar molecule
Explanation: Polar molecules are molecules which contain atoms of different electronegativities.
Non polar molecules are molecules which contains atoms of same electronegativities.
Water is a polar covalent molecule formed by unequal sharing of electrons. Oxygen being more electronegative tend to keep the electron pair towards itself thus generating a partial negative charge. The hydrogen acquire a partial positive charge thus resulting in a polar molecule.
The bent shape is due to repulsion between lone pairs and bond pairs of electrons.
Melting points and boiling points of molecular compound are usually lower than ionic compounds. This is so as only a small amount of energy is required to overcome the weak intermolecular forces of attraction (Van de Waals forces) thus having lower m.p. and b.p.
Ionic compounds require a large amount of energy to overcome the strong electrostatic forces of attraction between the ions, hence having higher mp and bp
