Step-by-step answers for Class 1–12
Solved questions with the full working shown, organised by subject and chapter and written to the NCERT syllabus. Pick your class below, or paste a question straight into the search box.
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12
Class 12
2,886 solved
11
Class 11
771 solved
10
Class 10
1,728 solved
9
Class 9
1,000 solved
8
Class 8
952 solved
7
Class 7
943 solved
6
Class 6
963 solved
5
Class 5
833 solved
4
Class 4
850 solved
3
Class 3
765 solved
2
Class 2
572 solved
1
Class 1
1,018 solved
Recently added
- 1 A 1.5 m nichrome wire has a cross‑sectional area of 0.6 mm² and a resistivity of 1.10×10^-6 Ωm at 20°C. What is its resistance? Class 12 Physics · Current Electricity
- 2 Which of the following evolutionary processes directly reduces genetic variation within a population? Class 12 Biology · Evolution
- 3 Which of the following compounds is a primary aliphatic amine? (a) N,N-dimethylformamide (b) Pyridine (c) 2-Butylamine (d) Aniline Class 12 Chemistry · Amines
- 4 Calculate the pH of a 0.040 M aqueous solution of triethylamine at 25°C, given K_b = 5.6×10^-4. Class 12 Chemistry · Amines
- 5 Explain why evaporation is faster in summer compared to winter. Class 5 EVS · Up You Go
- 6 A rectangular reservoir measures 45 m long, 25 m wide, and 4 m deep. Find the volume of water it holds in litres. Show calculations. Class 5 EVS · Up You Go
- 7 In the story, the word ‘recycle’ most closely means: Class 5 English · Wonderful Waste
- 8 Which DNA polymerase is most commonly used in PCR because it remains active after repeated cycles of high temperature denaturation? Class 12 Biology · Biotechnology and Its Applications
- 9 The average per‑capita rural income in 2012‑13 was Rs. 1,700 and rose to Rs. 2,050 in 2017‑18. During the same period the rural population increased from 950 million to 1.00 billion. Calculate the percentage change in total rural income between the two years. Class 12 Economics · Rural Development
- 10 If a rectangle has length 8 cm and breadth 5 cm, what is its perimeter? Class 1 Mathematics · Shapes and Space
- 11 Which 3‑D shape has all its faces as rectangles and is closed? Class 1 Mathematics · Shapes and Space
- 12 What lesson does the story teach about being helpful? Class 1 English · One Little Kitten