In the extraction of aluminium from bauxite, cryolite is used to
In the extraction of aluminium from bauxite, cryolite is used to Options (a) decreases the boiling point of aluminium (b)…
In the extraction of aluminium from bauxite, cryolite is used to Options (a) decreases the boiling point of aluminium (b)…
The bond length in LiF will be Options (a) less than that of NaF (b) more than that of KF…
The first ionisation potential will be maximum for Options (a) lithium (b) hydrogen (c) uranium (d) iron Correct Answer: hydrogenExplanation:No…
Lymph differs from blood in having Options (a) no R.B.C (b) no W.B.C (c) more W.B.C than R.B.C (d) all…
Rh factor is present in Options (a) all vertebrates (b) all mammals (c) all reptile (d) man and rhesus monkey…
The process of transfer of genetic information from DNA to RNA is Options (a) transversion (b) transcription (c) translation (d)…
Biological control of pests is Options (a) polluting (b) highly expensive (c) self-perpetuating (d) toxic Correct Answer: self-perpetuatingExplanation:No explanation available.…
A living substance of a cell was termed as 'sarcode' by Options (a) Robert Brown and Theodore Schwann (b) Robert…
African sleeping sickness is caused by Options (a) Giardia intestinalis (b) Trichomonas vaginalis (c) Trypanosoma gambiense (d) Leishmania donovani Correct…
The oxidation state of Cr in K₂Cr₂O₇ is Options (a) -5 (b) 6 (c) -6 (d) 5 Correct Answer: 6Explanation:No…