Chemistry-Objective Related Question Answers
451. The element present in Vitamin B12?
Cobalt
452. The scientist discovered Cobalt?
George Brandt
453. The micronutrient for bacteria; algae and fungi?
Cobalt
454. The isotope of Cobalt used for the treatment of cancer?
Cobalt 60
455. The substance used in glass to get blue colour?
Cobalt salt
456. First metal used by man?
Copper
457. Latin name of Copper?
Cuprum
458. The ores of Copper?
Malachite & Chalcolite
459. The metal prominently found in Panchatoha?
Copper
460. The chemical name of Blue Vitriol?
Copper sulphate
461. Impure Zinc is known as?
Spelter
462. The element used in galvanization and in dry cells?
Zinc
463. The element used in the manufacturing of perfumes?
Zinc
464. The element present in insulin and tear drop?
Zinc
465. The compound known as 'White Vitriol'?
Zinc Sulphate
466. The elements extracted through the process of distillation?
Zinc and Mercury
467. The word halogen means?
Salt former
468. Halogens are?
Fluorine (F) Chlorine (CI)Bromine (Br) Iodine (I) Astatine (At)
469. Which is a Synthetic Halogen -?
Astatine
470. Which is a Pseudo Halogen -?
Cyanogen
471. Which is a Solid Halogen -?
Iodine
472. Which is a Super Halogen?
Fluorine
473. The lightest known halogen is?
Fluorine
474. The least metallic in nature is?
Fluorine
475. The element having highest reactivity or electro-negativity?
Fluorine
© 2002-2017 Omega Education PVT LTD...Privacy | Terms And Conditions
Question ANSWER With Solution