Optic fibres are used in :
Optic fibres are used in :
A. CAT scans
B. X-ray photos
C. Ultrasound scans
D. Endoscopy
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One of the outstanding features of boron is its ability to form__________________?
One of the outstanding features of boron is its ability to form__________________?A. Molecular addition compounds
B. Molecular crystals
C. Semiconductors
D. Ionic compoundsWhich of the following sulphates is not soluble in water ?
Which of the following sulphates is not soluble in water ?A. Sodium sulphate
B. Potassium sulphate
C. Zinc sulphate
D. Barium sulphateClemmensens reduction infolves the reduction of___________________?
Clemmensens reduction infolves the reduction of___________________?A. ketone
B. aldehyde
C. alkane
D. all of the aboveWhat do we call to sudden expansion of plasma ?
What do we call to sudden expansion of plasma ?A. Avogadros law
B. Grahams law of diffusion
C. Joule Thompson effect
D. Daltons law of partial pressureAcetone reacts with HCN to form a cyanohydrin. It is an example of________________?
Acetone reacts with HCN to form a cyanohydrin. It is an example of________________?A. electronphilic addition
B. electrophilic substitution
C. nucleophilic addition
D. nucleophilic substitutionQuantum number values for 3p orbitals are____________________?
Quantum number values for 3p orbitals are____________________?A. n=3 l=2
B. n=3 l=0
C. n=3 l=1
D. n=3 l=3