All of the following substances are crystalline except_____________?
All of the following substances are crystalline except_____________?
A. Ice
B. Diamond
C. Sucrose
D. Plastic
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Mass spectrograph was Invented by?
Mass spectrograph was Invented by?A. Rutherford
B. Chadwik
C. F.W.Aston
D. None of theseUnit of Kc is_______________?
Unit of Kc is_______________?A. moles2dm+6
B. moles-2dm+6
C. moles+2dm-6
D. Kc may or may not have unitsWhich among the following is correct about Saliva of a Healthy Human?
Which among the following is correct about Saliva of a Healthy Human?A. It is slightly acidic
B. It is slightly saline
C. It is slightly alkaline
D. It is neutralThe top atmosphere of the Earth directly reflects back into space nearly what part of the total amount of sun’s energy coming to it?
The top atmosphere of the Earth directly reflects back into space nearly what part of the total amount of sun’s energy coming to it?
A. 10%
B. 20%
C. 30%
D. 50%PSR J0108-1431 is the closest known ______________ to Earth?
PSR J0108-1431 is the closest known ______________ to Earth?
A. Black hole
B. Red giant
C. Quasar
D. PulsarWhich one of the following methods will not give benzene ?
Which one of the following methods will not give benzene ?A. Heating sod. Salt of Benzoic acid with soda lime
B. Distilling phenol with Zn dust
C. Chlorobenzene with NaOH at 360°C & 150atm.
D. Hydrolysis of benzene sulphonic acid with super heated steam