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The shape of ammonia molecule is?
Which of the following gases will rekindle a brightly splint?
The volume occupied by 1.58g of a gas at S.T.P is 500cm\(^3\). What is the relative molecular mass of the gas? [ G.M.V at S.T.P = 22.4dm\(^{3}\) ]
The number of molecules of Carbon(iv)Oxide produced when 10.0g of CaCO\(_3\) is treated with 0.2dm\(^3\) of 1 Mole of HCL in the equation
CaCO\(_3\) + 2HCL ⇒ CaCl\(_2\) + H\(_2\) O + CO\(_2\) , is?
How many valence electrons are contained in the element \(^{31}_{15}P\)?
The products of the thermal decomposition of ammonium trioxonitrate(v) are?
Four elements P, Q, R and S have atomic numbers of 4, 10, 12 and 14 respectively. Which of these elements is noble gas?
If the quantity of oxygen occupying 2.76L container at a pressure of 0.825 atm and 300k is reduced by one-half, what is the pressure exerted by the remaining gas?
Which of the following substances is a mixture?
When water drops are added to calcium carbide in a container and the gas produced is passed through a jet and lighted, the resultant flame is called an?
Liquid black soap is made by boiling palm oil with liquid extract of ash. The function of the ash is to provide the ?
What process would coal undergo to give coal gas, coal tar, ammoniacal liquor and coke?
What are the possible oxidation numbers of an element if its atomic number is 17?
Which of the gas laws does this graph illustrate?
The best treatment for a student who accidentally poured conc tetraoxosulphate(vi) on his skin in the laboratory is to wash his skin with?
8g of CH\(_4\) occupies 11.2 at S.T.P. What volume would 22g of CH\(_3\)CH\(_2\)CH\(_3\) occupy under the same condition?
An example of a polysaccharide is?
Duralumin consists of aluminum, copper?
Which of the following can be obtained by fractional distillation?
The electronic configuration of an element is 1S\(^2\) 2S\(^2\) 2P\(^6\) 3S\(^2\) 3P\(^3\). How many unpaired electrons are there in the element?