MCQ
Combustion is helped by:
- ACarbon dioxide
- BHydrogen
- CNitrogen
- ✓Oxygen
✓
Answer
Correct option: D.
Oxygen
Oxygen
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
DIRECTIONS: Read the passage(s) given below and answer the questions that follow. Passage - Study the Venn diagram given below that represents the characteristics that materials may have. On the basis of the diagram answer the following questions.
Which of the following substance represents $(III)?$
→Which of the following substance represents $(III)?$
Directions: Look at the following diagram and answer the following question.
Which of the following represents $'P'$?
→Which of the following represents $'P'$?
Which one will have highest rate of evaporation?
Choose the correct alternative to complete the given analogy.
Physical change : Boiling :: Chemical change : __________.
Physical change : Boiling :: Chemical change : __________.
Desert animals survive in the scorching heat by:
Which food items from the given choices should be included in our diet to protect us from bleeding gums?
Directions: Read the following three statements carefully and choose the correct option.
- Nylon is used for the manufacture of timecards, fabrics and ropes.
- Cotton was known to the ancient Indiansand Egyptians.
- Silk fibres are long, even, straight and fine.
Which of the following statement(s) is/ are correct?
Prem and Raju started walking from their house to reach their friend Ritika's house. Prem covered a distance of $2\ km$ and Raju covered a distance of $4\ km$ but they both took the same time. Which among the following statements is correct for the above situation$?$
→Which one of the following is the correct grouping of different materials according to their electrical conductivity?