Chemical Reactions Quiz 1

Question 1

On burning of magnesium ribbon in air, forms.

Accepted Answer

MgO

Answer

$MgCO_3$

Answer

$Mg_3N_2$

Answer

$MgSO_4$

Question 2

Nature of MgO is _______.

Accepted Answer

Basic

Answer

Acidic

Answer

Neutral

Answer

Can&rsquo;t say

Question 3

Which of the following statement is correct about balance chemical equation?

Accepted Answer

The number of atoms of each element, same on both side

Answer

The number of molecules is same on both side

Answer

One atom may change to another atom

Answer

Mass of the reactants may different to the mass of the products

Question 4

Which of the following chemical equation is balanced?

Accepted Answer

$BaCl_2+H_2SO_4\longrightarrow $ $BaSO_4+2HCl$

Answer

$AgNO_3+BaCl_2\longrightarrow AgCl$ $+BaSO_4$

Answer

$NaHCO_3\overset{\Delta}{\longrightarrow}Na_2CO_3$ $+H_2O+CO_2$

Answer

$C_4H_8+5O_2\longrightarrow 4CO_2$ $+4H_2O$

Question 5

Identify the types of chemical reaction.

A + B $\longrightarrow$ C

Accepted Answer

Combination reaction

Answer

Decomposition reaction

Answer

Displacement reaction

Answer

Double displacement reaction

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