### SSC SCIENCE TEST PAPER 2

OMTEX CLASSES
“THE HOME OF SUCCESS”

Q1. A. Fill in the blanks.
1.        The formula of chloride of metal M is MCl2. The metal M belongs to group ______
2.        The arrangement of elements in a group of three is known as ­________.
3.        The element eka – aluminum in Mendeleev’s periodic table is known as _________in modern periodic table.
4.        The chemical formula of POP is_________.
5.        Corrosion can be prevented by using____________.
6.        The chemical reactions is which heat is liberated are called _________reactions.
7.        Phenolphthalein is __________type of indicator.
8.        pH scale ranges from ________to_________
9.        Sodium or potassium salts of higher fatty acids are termed as _________
10.     10% NaCl is known as__________.
Q2. Write short notes on
1.        pH scale (with proper diagram).
2.        Water of crystallization (with proper example)