Rancidity of fats and oils is caused by.

Important Questions on Chemical Reactions and Equations

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 1 - Chemical Reactions and Equations>Exercise 10>Q 15

In the balanced equation
${\mathrm{aFe}}_2{\mathrm{O}}_3+{\mathrm{bH}}_2\to \mathrm{cFe}+{\mathrm{dH}}_2\mathrm{O}$
The value of $\mathrm{a}$, $\mathrm{b}$, $\mathrm{c}$, $\mathrm{d}$ are respectively -

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 1 - Chemical Reactions and Equations>Exercise 10>Q 16

Which of the following reactions is not balanced.

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 1 - Chemical Reactions and Equations>Exercise 10>Q 17

In the balanced the equation. $\mathrm{Cu}+\underset{\left(\mathrm{conc}.\right)}{{\mathrm{xHNO}}_3}\to \mathrm{Cu}{\left({\mathrm{NO}}_3\right)}_2+{\mathrm{yNO}}_2+2{\mathrm{H}}_2\mathrm{O}$
The values of x and y are-

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 1 - Chemical Reactions and Equations>Exercise 10>Q 18

Neutralization reaction is an example of.

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 1 - Chemical Reactions and Equations>Exercise 10>Q 19

Which of the following statements is true-

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 1 - Chemical Reactions and Equations>Exercise 10>Q 20

Which of the following statements is correct?

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 1 - Chemical Reactions and Equations>Exercise 10>Q 21

$\mathrm{Zn}\left(\mathrm{s}\right)+{\mathrm{H}}_2{\mathrm{SO}}_4\left(\mathrm{aq}.\right)\to {\mathrm{ZnSO}}_4\left(\mathrm{aq}.\right)+{\mathrm{H}}_2\left(\mathrm{g}\right)$ is an example of.

MEDIUM

10th CBSE

IMPORTANT

Eduwiser's CBSE Chemistry For Class X>Chapter 1 - Chemical Reactions and Equations>Exercise 10>Q 22

When dilute hydrochloric acid is added to iron _____.