STEM NEST General Science Trivia

Mechanics is the branch of Physics that deals with?

• Mechanical Energy

• Mechanical Engineering

• Mechatronics

• All kinds of motions

Which is the most reactive Noble Gas

• Noble gases don't react

• Chlorine

• Xenon

• Krypton

Answer explanation

Xenon is the only noble gas which forms compounds with other elements, mainly due to its big size.

What is the order of Radioactive disintegration reactions?

• First Order

• Second Order

• Zero Order

• Depends on the concentration

Answer explanation

Radioactive disintegration reactions are always first order

What is the reason for twinkling of stars?

• Atmosphereic Refraction of star light

• Stars are far away

• Dispersion of light

• Gases in the atmosphere

Are all numbers are complex numbers?

• False

• True

__ is a concentration of heat, light or radiation that it forms an event horizon and becomes self trapped.

• Black Hole

• Neutron Star

• Schwarzschild kugelblitz

• Energy Blackhole

The existence of an element in more than one crystalline form is

• Isomerism

• Isomorphism

• Polymorphism

• Allotropy

What organ is insulin secreted from?

• Liver

• Stomach

• Pancreas

• Gall Bladder

Select all allotropes of carbon (Multiple Correct Answers)

• Diamond

• Graphene

• Buckminsterfullerene

• Graphite

What is the pH of our Oesophagus in normal conditions? (The organ that connects our mouth to stomach)

• Basic

• Neutral

• Acidic

• Depends from person to person

Answer explanation

Well the stomach is acidic and not the oesphagus. The oesophagus has neutral pH due to saliva which is neutral.