Substances in Common Use — Science STD 9 — Question

Fill in the following blanks with suitable words:
The state of matter called _________ makes a fluorescent tube (or neon sign bulb) to glow.

________gas is released when bleaching powder is added to water.

Anodizing is done by________

Stem elongation: Gibberellin :: Cell division : …………………………….

Complete the following statements:
Some boron atoms have mass number 10 and some have mass number 11. These boron atoms with different mass number are called ____________.

Fill in the following blanks with suitable word:
Sound cannot travel through _____.

Tendons : Join muscles to bones :: Ligaments :

Women : Turner syndrome : : Men : ……………………………..

Fill in the blanks in the following statements:
The maximum number of electrons that can go into the M shell is __________.

Electron : extra nuclear part:: Neutron ………………………… .