biochemistry

Elements with similar chemical properties appear in the_________________?

• Same family

• Same period

• p block elements

• Right upper corner

In modern periodic table all the leements are arranged in ascending order of__________________?

• Valency

• Atomic mass

• Atomic number

• Valence electrons

Which of the following is not a macromolecule ?

• sand

• haemoglobin

• diamond

• maltose

The atoms of same element having same atomic number but different mass number are called____________________?

• Isobars

• Isomers

• Isotopes

• Isotropes

Oxidation state of an atom represents ________________?

• Number of electrons gained

• Number of electrons lost

• Apparent charge in compound

• Its valancy

A single atom or group of atoms which gives characteristic properties to a compound is called_________________?

• radical

• hydrocarbon

• functional group

• ion

The organic compounds having very high molecular weight are called _________________?

• carboxylic acids

• ketones

• aldehydes

• polymers

Compounds having same molecular formula but differ in structural formula are called __________________?

• polymer

• monomer

• isomer

• allotropes

Compounds that have the same structural formula but different spatial configuration are called

• Epimers

• Anomers

• Stereoisomeris

• Optical isomers

Main source of organic compounds is__________________?

• Animal

• Fossil

• Coal

• Plants