Each coal ball is a mass of

  • A
    Calcium carbonate
  • B
    Magnesium carbonate
  • C
    Iron sulphide
  • D
    All the above

Explore More

Similar Questions

Which of the following is given as a decoction in jaundice,paralysis,urinary troubles,menstrual disorders,and inflammatory conditions of the chest?

$A$ genus of ornamental plants which is being cultivated for extracting an important edible oil from its Cypsela fruits is

Which of the following provides a delicious drink with laxative and diuretic properties?

Which of the following is grown as the most important source of textile fibres in Bengal?

Which of the following is known as Indian dwarf wheat?

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo