What are the names of the three different rays emitted by
radioactive substances ?
What is OOS $ OOT ?
Why is a vessel of water heats more quickly, when heat is applied at the bottom than it is heated at the top?
Give the principle of potentiometer titration.
What is Salts ?
Why titration in which hcl and h2so4 is use?
How many elements have been discovered on the Periodic Table?
who invented the first projector?
why is acetic acid less conductive than hcl?
Define Atom ?
What are the names of the three different rays emitted by radioactive substances ?
Explain about Atomic Weight ?
Difference between Physical and Chemical change ?