Start learning →

Andhra Pradesh SSC (Class 10) Science — practice by topic

Browse 838 questions across 17 Science topics. Choose what you want to revise, then open a question to check its answer and worked solution.

Start learning Andhra Pradesh SSC (Class 10) with Quill →

Science topics

Refraction of Light and Lenses (140)Metals and Non-metals (82)Chemical Reactions and Equations (77)Effects of Electric Current (77)Life Processes in Living Organisms Part 1 (70)Life Processes in Living Organisms Part 2 (68)Environmental & Disaster Management (66)Heredity and Evolution (50)Periodic Classification of Elements (44)Calorimetry (35)Carbon Compounds (35)Acids, Bases and Salts (29)Light and Optics (29)Materials: Metals and Non-Metals (13)Sound (11)Elements, Compounds and Mixtures (8)Life Processes & Human Physiology (4)

Try a Science question

The notes calculate $\lambda_m^c$ using $\lambda_m^c = \dfrac{0.04 \times 1000}{0.1}$. What value is obtained?Read the answer and worked solution →From the expression shown, $\lambda_m^{\infty}(HA) = 400 + 500 - 50$, the limiting molar conductivity of $HA$ isRead the answer and worked solution →Which equation best represents the essential ionic change in a neutralization reaction?Read the answer and worked solution →Heating copper nitrate crystals produces black copper oxide, reddish-brown nitrogen dioxide, and oxygen. This reaction is best classified asRead the answer and worked solution →

Worked practice questions

The notes calculate $\lambda_m^c$ using $\lambda_m^c = \dfrac{0.04 \times 1000}{0.1}$. What value is obtained?

  1. 40
  2. 400
  3. 4000
  4. 4
Show answer and solution

Correct answer: B. 400

Compute $\lambda_m^c = \dfrac{0.04 \times 1000}{0.1} = \dfrac{40}{0.1} = 400$.

Open this question →

From the expression shown, $\lambda_m^{\infty}(HA) = 400 + 500 - 50$, the limiting molar conductivity of $HA$ is

  1. 850
  2. 950
  3. 400
  4. 50
Show answer and solution

Correct answer: A. 850

Direct evaluation gives $400 + 500 - 50 = 850$. **Therefore, $\lambda_m^{\infty}(HA) = 850$.**

Open this question →

Which equation best represents the essential ionic change in a neutralization reaction?

  1. $\mathrm{Na^+ + Cl^- \rightarrow NaCl}$
  2. $\mathrm{H^+ + OH^- \rightarrow H_2O}$
  3. $\mathrm{Ag^+ + Cl^- \rightarrow AgCl}$
  4. $\mathrm{Mg + O \rightarrow MgO}$
Show answer and solution

Correct answer: B. $\mathrm{H^+ + OH^- \rightarrow H_2O}$

Neutralization is fundamentally the reaction between hydrogen ions from an acid and hydroxide ions from a base to form water: $\mathrm{H^+ + OH^- \rightarrow H_2O}$. The other options describe salt formation, precipitation, or oxidation.

Open this question →

How to practise

  1. Choose a Science question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.