Question

10) names of the elements are eka-boron, eka-aluminium & eka-silicon as ....., .... & ..... respectively

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Answer 1

Answer:

All the eka-ele-ments were later discovered: eka-aluminum (1875) was called gallium; eka-boron (1879), scandium; and eka-silicon (1886), germanium. Mendeleev also predicted the existence of analogues of manganese (future Tc and Re), and tellurium (Po), iodine (At), cesium (Fr), barium (Ra), and tantalum (Pa

Answer 2

Explanation:

Answer:

The raw cotton is loosened and cleaned; to remove straw and dried leaves. The cleaned cotton is then fed into a machine. The cotton fibre are combed, straightened and converted into a rope like structure called sliver. The sliver of cotton fibre is converted into yarn by spinning using machines.

Answer:

The raw cotton is loosened and cleaned; to remove straw and dried leaves. The cleaned cotton is then fed into a machine. The cotton fibre are combed, straightened and converted into a rope like structure called sliver. The sliver of cotton fibre is converted into yarn by spinning using machines.