Test Details

Report

Chemical Reactions And Equations

Jan 12, 10:53 AM

40 minutes

Jan 12, 11:33 AM

60.0 marks

MCQ

30 questions

Prabhat shakti

MSc, BEd

Class Details

Chemistry

Target NEET

Chemistry

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Question Text

Question 1 :
A shiny brown coloured element X on heating in air becomes black in colour. Name the element X and the black coloured compound formed.

Question 2 :
Write the balanced chemical equations for the following reactions: Zinc+ Silver nitrate $\rightarrow$ Zinc nitrate + Silver

Question 3 :
Translate the following statements into chemical equations and then balance them: Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.

Question 4 :
Translate the following statements into chemical equations and then balance them: Hydrogen gas combines with nitrogen to form ammonia.

Question 5 :
A solution of a substance 'X' is used for white washing Name the substance 'X'.

Question 6 :
Write the balanced chemical equations for the following reactions: Aluminium + Copper chloride $\rightarrow$ Aluminium chloride + Copper

Question 7 :
Balance the following chemical equations: $BaCl_{2} + H_{2}SO_{4} \rightarrow BaSO_{4} + HCl$

Question 8 :
A solution of a substance 'X' is used for white washing Name the substance 'X'.

Question 9 :
Identify the substances that are oxidised in the following reactions. $4Na(s) + O_{2}(g) \rightarrow 2Na_{2}O(s)$

Question 12 :
Translate the following statements into chemical equations and then balance them: Hydrogen sulphide gas burns in air to give water and sulphur dioxide.

Question 13 :
Oil and fat containing food items are flushed with nitrogen. Why?

Question 14 :
Balance the following chemical equations: $NaOH + H_{2}SO_{4} \rightarrow Na_{2}SO_{4} + H_{2}O$

Question 15 :
Balance the following chemical equations: $HNO_{3} + Ca(OH)_{2} \rightarrow Ca(NO_{3})_{2} + H_{2}O$

Question 17 :
Identify the substances that are oxidised in the following reactions. $CuO(s)+ H_{2}(g) \rightarrow Cu(s)+ H_{2}O(l)$

Question 18 :
Identify the substances that are reduced in the following reactions. $4Na(s) + O_{2}(g) \rightarrow 2Na_{2}O(s)$

Question 19 :
Identify the substances that are reduced in the following reactions. $CuO(s)+ H_{2}(g) \rightarrow Cu(s)+ H_{2}O(l)$

Question 20 :
Give an example of a double displacement reaction other than the reaction of barium chloride with sodium sulphate.

Question 21 :
Why does the colour of copper sulphate solution change when an iron nail is dipped in it?

Question 22 :
Balance the following chemical equations: $NaCl + AgNO_{3} \rightarrow AgCl + NaNO_{3}$

Question 23 :
Translate the following statements into chemical equations and then balance them: Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.

Question 24 :
Write the balanced chemical equation for the following and identify the type of reaction in each case: Zinc carbonate (s) $\rightarrow$ Zinc oxide (s)+ Carbon dioxide (g)

Question 25 :
Write the balanced chemical equation for the following and identify the type of reaction in each case: Zinc carbonate (s) $\rightarrow$ Zinc oxide (s)+ Carbon dioxide (g)

Question 26 :
Write the balanced chemical equations for the following reactions: Calcium hydroxide + Carbon dioxide $\rightarrow$ Calcium carbonate + Water

Question 27 :
A solution of a substance 'X' is used for white washing Write the formula of 'X'.

Question 28 :
Translate the following statements into chemical equations and then balance them: Hydrogen sulphide gas burns in air to give water and sulphur dioxide.

Question 29 :
Give an example of a double displacement reaction other than the reaction of barium chloride with sodium sulphate.

Question 30 :
Write the balanced chemical equations for the following reactions: Zinc+ Silver nitrate $\rightarrow$ Zinc nitrate + Silver

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