Chemistry
With reference to a molecule of water, fill in the blanks with the correct word. [at. no. of H = 1, O = 8]
Water is a …………… [non-polar/polar] covalent molecule in which the atom of …………… [hydrogen/oxygen] attracts electrons more strongly towards itself. The water molecule shows the presence of …………… [double / one single / two single] covalent bond/s and …………… [one/two] lone pair of electrons present in the …………… [hydrogen/oxygen] atom.
Related Questions
Give reasons for the following:
A non-metallic atom (at. no. 9) forms a molecule of the same, containing a single covalent bond.
Give reasons for the following:
In the formation of MgO the magnesium atom (at. no. 12) loses two electrons from it's valence shell.
Complete the table given below:
Element Element Type of bond likely in molecule of Formula of compound A: At. no. = 20 B: At no. = 8 A and B A: At no. = 20 C: At no. = 17 A and C D: At. no. = 9 D: At. no. = 9 D and D E: At. no. = 12 F: At. no. = 16 E and F G: At. no. = 1 F: At. no. = 16 G and F Fill in the blanks with the correct word from the brackets:
- The bond between two elements in group 17[VIIA] of the periodic table is likely to be …………… [ionic/covalent].
- In the reaction of Cl2 + 2KI ⟶ 2KCl + I2 the conversion of 2I to I2 is deemed as …………… [oxidation/reduction].
- The covalent molecule containing three single covalent bonds is …………… [water/methane/ammonia].
- The molecule of water combines with a …………… [hydrogen atom/proton/hydrogen molecule] to form a hydronium ion.
- For formation of an electrovalent bond between elements 'X' and 'Y' which are a metal and non-metal respectively, X should have a …………… [high/low] ionization potential and 'Y' a …………… [high/low] electron affinity.