Frequently Asked Questions by SSC

Frequently Asked Questions by SSC
 IMPORTANT

* Is the lightest metal - lithium

* The heaviest metal is - Osmium

* The Hardest Metal is - Platinum

* The hardest substance is - diamond

* The best coal is - anthracite

* Pure form of water - rain water

* Called Marsh Gas - Methane

* Nobel gas is called - Helium

* Electrical current is measured - by ammeter

* Major ore of mercury is - cinebar

1 invented television - J. L. John Logie Baird

2 Invented 2 radars - Taylor & Young

3 Who discovered gravity - Newton

4 Which acid is in vinegar and pickle-acetic acid

5 Which acid is in lemon and orange-citric acid

6 Milk is sour - due to the lactic acid present in it

7 is the ink in the voters' hands - silver nitrate

8 Earth rotates on its axis - west to east

9 Onion and garlic smell - due to the potassium present in it

10 Rontzen discovered  x-rays

11 Innovator of  scooters - Brad Shaw

12 Inventor of  revolvers - colt

13 measures the depth of the sea - with a fedometer

14 DNA.The model of the structure was given by- Watshan and Crick

15 First element to be made in laboratory - urea

16 telephone innovators - Graham Bell

17 First satellite left by India - Arya Bhatt

18 pencils discovered - by Alexander Fleming

19 smallpox vaccine discovered - Jenner

20 Originator of Biology -Aristotle

21 Dynamite inventor - Alfred Noble

22 The first man to land on the moon  - Neil Arm Strong

23 The first man to go into space - Yuri Gagarin

24 largest bone- femur of the thigh

25 shortest bone  -step ears

26 World's largest flower - refllessia

27 Which vitamin contains cobalt - B12

28 Anemia is cured by which vitamin- B12

29 Ratodhi disease occurs due to deficiency of which vitamin - Vitamin A

30 Which disease is caused by vitamin B deficiency - Berry Berry

31 Typhoid affects which part of the body - intestine

32 Cholera and TB bacteria discovered - Robert Koch (1982)

33 Is found in blood - iron element

34 X- rays - electromagnetic rays

35 Water has air bubbles - concave lens

36 The weight of an object on the equator will be - minimum

37 Reasons for sun to appear before sunrise - refraction of light

38 What effect does the speed of sound have on increasing temperature - increases

39 If we look at the sky from the moon, what will it look like - black

40 Human skin color is formed - due to Menalin.