Related Questions

i. ∠ABD = ∠90° ii. ∠ABD = 90° - x iii. ∠ABC-∠ABD = ∠x নিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i, ii ও iii
চিত্র-i. AB = 5 একক ii. Δ ক্ষেত্র ABD = 6 বর্গ একক iii. Δ ক্ষেত্র ABD এর পরিসীমা = 12 একক নিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i, ii ও iii
Bleaching action of bleaching powder is due to its __________ properties.
A Reducing
B Oxidising
C Disinfecting
D None of these
Dacron (or terylene) fibres as compared to nylon fibres have
A Better heat & acid resistant properties
B Poorer resistance to alkalis
C Poorer dyeability
D All of the above
Dacron (or terylene) fibres as compared to nylon's fibres have
A Better heat & acid resistant properties
B Poorer resistance to alkalis
C Poorer dyeability
D All of the above
Hydrogen peroxide can be neutralized in our body by
A Glutathione peroxidase
B Catalase
C Superoxide dismutase
D Myeloperoxidase
E Glucose 6-phosphate dehydrogenase (G6P
Hydrogen peroxide can be neutralized by
A Catalase
B Glutathione peroxidase
C Superoxide dismutase
D Myeloperoxidase
E Glucose 6- phosphate dehydrogenase
Concentration of hydrogen peroxide is done by
A Crystallisation
B Vacuum crystallisation
C Atmospheric distillation
D Dehydration
The most commonly used bleaching agent is
A alcohol
B carbon dioxide
C chlorine
D sodium chlorine
Chlorine acts as a bleaching agent only in the presence of
A Dry air
B Pure oxygen
C Moisture
D Sunlight

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