Determine the largest amount, Which of the following electron transition in...

Which of the following electron transition in a hydrogen atom will require the largest amount of: (1) From n-1 to n=2          (2) From n= 2  to n=3  (3) From n= ∞  to n=

Atoms and molecules, How to find the atomicity of an element

How to find the atomicity of an element

Number of nodal centres for 2s orbital, Number of nodal centres for 2s orbi...

Number of nodal centres for 2s orbital: (1) 1        (2) 0        (3) 4        (4) 3 Ans: 1

Explosive, define explosive

define explosive

Give the nine point hedonic scale, Q. Give the nine point hedonic scale? ...

Q. Give the nine point hedonic scale? The nine point Hedonic scale is: Like extremely, like very much, like moderately, like slightly, neither like nor dislike, dislike slightl

Redox reactions as a change in oxidation number, Q. How to change in Oxidat...

Q. How to change in Oxidation Number in Redox Reactions? Ans. In reduction-oxidation, or redox, reactions, atoms undergo changes in their oxidation numbers. Consider th

What are the rules used for round off numbers, Q. What are the rules used f...

Q. What are the rules used for round off numbers? 1. If the digit to the instantaneous right of the last significant figure is less than five don't change the last significan

The wave nature of an electron was first given, The wave nature of an elect...

The wave nature of an electron was first given by: (1) De-Broglie (2)Heisenberg (3)Mosley (4)Sommerfield Ans:  De-Broglie

Emf series and its application,

Types of interferences, Types of interferences: The various kinds of i...

Types of interferences: The various kinds of interferences encountered in analysis through flame photometry are: Spectral interferences Ionisation interferences