[PPSC Analyst 2022]

26. The molecular mass of a gas is :

[PPSC Analyst 2022]

27. The chemical composition of ‘slag’ formed during the smelting process in the extraction of copper is –

[PPSC Analyst 2022]

28. Vitamin B₁₂ contains

[PPSC Analyst 2022]

29. Consider the following statements regarding ‘Pralay’ missile recently test fired by the Defence Research and Development Organisation (DRDO):
1) It is India's first surface-to-surface conventional quasi-ballistic missile.
2) The missile was tested from the Dr A.P.J. Abdul Kalam Island off the coast of Odisha.
3) It is a 150-500 km short-range and is a surface-to-surface missile with a payload capacity of 100-500 kg.
 

Which of the statements given above is/are correct?

[PPSC Analyst 2022]

30. The relation between algae and fungi in lichen is