Which of the following is not a neutral oxide?
1 Carbon monoxide
2 Sulphur dioxide
3 Nitric oxide
4 Water
A team of u.n scientists visited thumba?
Heavy water is 1 Sea water (H2O+Salt) 2 D2O 3 H2O2 4 None of these
The pink color of Bayer’s reagent is discharged when acetylene is passed through it. This is due to the formation of 1 Acetic acid 2 Ethylene 3 Water 4 Oxalic acid
A substance which changes readily into vapor without heating is called 1 Efflorescent 2 Synthetic 3 Volatile 4 Effervescent
What are the divisions of food according to the functions it performs ? Describe them
Atoms are composed of 1 Electrons only 2 Protons only 3 Electrons and protons 4 Electrons and nuclei
Which gas is used for preparation of soda water? 1 Ammonia 2 carbon dioxide 3 Hydrogen 4 Nitric oxide
Where did the largest reflector telescope situated?
Which of the following characteristics is not-shown by hydrogen? 1 It burns in air to form water 2 It supports combustion 3 It combines with almost all the metals forming hydrides 4 None of these
Why Colours is Important in Our Daily Life???
What is balanced diet? Give the everyday diet of a normal man.
Which of the following is used for removing air bubbles from glass during its manufacture? 1 Feldspar 2 Arsenious oxide 3 Potassium carbonate 4 Soda ash