Question 1 :
$$FeCl_3 + 3NaOH \rightarrow 3NaCl + Fe(OH)_3$$<br/><br/>The reaction is an example of________.
Question 2 :
The reaction of hydrochloric acid with zinc oxide to form zinc chloride and water is neutralization reaction. State whether the statement is true or false
Question 3 :
When calcium nitrate thermally decomposes oxygen is one of the products. Which volume of oxygen is produced under room conditions when $$0.50$$ mol of calcium nitrate thermally decomposes?
Question 4 :
Write 'true' or 'false' for the following statement:<br>When potassium iodide solution is added to lead acetate solution a red precipitate is formed
Question 5 :
Which of the following reaction are disproportion reaction?<br/>a) $$2Cu^+\rightarrow Cu^{2+}+Cu^o$$<br/>b) $$3MnO^{2-}_4+4H^+\rightarrow 2MnO_4^-+MnO_2+2H_2O$$<br/>c) $$2KMnO_4\xrightarrow []{\Delta}K_2MnO_4+MnO_2+O_2$$<br/>d) $$2MnO_4^-+3Mn^{2+}+2H_2O\rightarrow 5MnO_2+4H^{+}$$
Question 6 :
Exposure of silver bromide to sunlight for a long duration turns grey due to:
Question 8 :
Which of the following metals exist in their native state in nature?<br/>(i) Ca<br/>(ii) Au<br/>(iii) Zn<br/>(iv) Ag<br/>
Question 10 :
During electrolytic refining of copper.<br/>(a) Pure copper acts as anode.<br/>(b) Pure copper acts as cathode.<br/>(c) Impure copper acts as anode.<br/>(d) Impure copper acts as cathode.<br/>
Question 12 :
The bonds present in $$\left( { N }_{ 2 }{ O }_{ 5 } \right) $$ are:<br/>
Question 13 :
Calcium reacts __________ with water and forms calcium hydroxide and liberates hydrogen gas.
Question 14 :
Which one of the following properties is not generally exhibited byionic compounds?<br>
Question 15 :
The process of zinc plating on iron sheet is known as _______.
Question 16 :
Roasting is carried out to :1) convert sulphide to oxide and sulphate. <br/>2) remove the water of hydration. <br/>3) melt the ore. <br/>4) remove arsenic and sulphur impurities.<br/>Choose the correct options.
Question 18 :
Aquaregia is prepared by mixing conc. $$HCl$$ and $$conc. HNO_3$$ in the ratio ________ 
Question 19 :
Water of crystallization is the fixed number of water molecules chemically attached to a unit of a salt in its crystalline form.<br/>
Question 21 :
Which part of tooth, made up of calcium phosphate, is the hardest substance in the body?
Question 22 :
A $$0.01\ M$$ ammonia solution is $$5$$% ionised, its $$pH$$ will be:<br/>
Question 24 :
Read the given statements and select the correct option:<br/>Statement 1 :Backing soda does not taste sour.<br/>Statement 2 :Bases are sour in taste while acids are bitter in taste.
Question 25 :
Assertion: pH of 10 M $$HCl$$ aqueous solution is less than 1.
Reason: pH is negative logarithm of $$H^{+}$$ concentration.
Question 27 :
When ethyl alcohol is heated with a paste of bleaching powder, we get a compound in which the function of bleaching powder is: 
Question 28 :
One mole of ammonia was completely absorbed in one litre solution each of<br/>I. $$1\ M\ HCl$$<br/>II. $$1 \ M\ CH_3COOH$$ <br/>III. $$1\ M\ H_2SO_4$$ at $$298$$ K<br/>The decreasing order for the $$pH$$ of the resulting solution is:(Given: $$K_b (NH_3) = 4.74$$)