A
B
C
D
E
100

What is a chemical formula of oxalic acid 

C2H2O4

100

which scientist improved the design of telescope

Galileo Galilei

100

what is the name of theory that describes the shapes of molecules based on between electron pair?

 VSEPR(Valance shell electron pair repulsion)



100

what quantum number represents the shapes of orbitals?

Azimuthal

100

What is the  chemical formula of urea

CH4N2O

200

Who proposed that electrons have wave-like properties and introduced the concept of matter waves?

louis de broglie


200

Who is the current science and technology Minister

Jitendra singh

200

What is  the formula of friction 

  F= μN

200

what is the terms for organisms that produce their own food through photosynthesis ?

Autotrophs

200

what part of  the brain is primarily responsible for memory?

Hippocampus

300

What do we call the boundary surrounding a black hole beyond which nothing can escape?

Event horizon

300

What is the most abundant metal element in earth's crust?

Alluminium

300

which scientist discovered periodic table

Dmitri Mendeleev

300

what is the chemical formula of plaster of paris

 CaSO4.1/2H2O

300

which element is known as the" king of chemicals" due to it's widespread industrial use?

uranium

400

what is the terms for the resistance of an object to a change it's state of motion?

Inertia

400

What is the formula of molality

Molality=Moles of solute/mass of solvent in kg

400

What is the chemical name of vitamin C

Ascorbic acid 

400

What type of rock is formed from the cooling and solidification of magma or lava ?

Igneous


400

which scientist invented the electric battery.

Alessandro Volta

500

which scientist is the Founder of quantum theory

Max Planck

500

Which acid is commonly known as "oil of vitriol"?

Sulfuric acid 

500

Which is the first semiconductor device 

Cat's whisker detecter

500

 which scientist gave Ohm’s law  

Georg Ohm

500

On which date world cancer day is celebrated?

4 February