Check the following properties on any integers a,b, Commutative property under addition and subtraction (a+b=b+a?a-b=b-a?)

Which of the following is commutative property under multiplication ?

Which of the following is a multiplicative distributive property over addition ?

Which of the following does not represent pair of integers (a, b) such that a/b=2 ?

Identify the following bio molecules A,B based on their properties

What is a periodic property? How the following properties vary in a group and in a period? Explain (b) EN.

Determine which of the following binary opertions on the set R are associative and which are commutative. (a) a **b =1 AA a, b in R (b) a **b = ((a +b))/( 2) AA a,b in R

Write notes on the following properties of liquids a) Vapour pressure (b) Surface tension ( c) Viscosity.

Solve the following simple equations and check the result. b/7=-2

What is a periodic property? How do the following properties change in a group and period? Explain (a) Atomic radius (b) Ionization energy (c) Electron affinity (d) Electronegativity