Chemistry-Objective Related Question Answers
501. The element known as solid halogen?
Iodine
502. The non-metal having highest density?
Iodine
503. The most commonly used 'halogen available as tablet?
Iodine
504. Iodine test is used to detect?
Carbohydrate
505. The colour of carbohydrate in iodine?
Dark Blue
506. The element that sublimes (solid into vapour) on heating?
Iodine
507. The substance contains in the capsule which is given to the people in the nuclear disaster affected area?
Potassium Iodide
508. The substances used for artificial raining?
Silver Iodide andDry ice
509. The rarest element on earth?
Astatine
510. The heaviest known halogen?
Astatine
511. The element known as synthetic halogen?
Astatine
512. Noble gases are also called as?
Inert gases
513. Noble gases were discovered by?
William Ramsay
514. Group 18 is also known as?
Zero group elements
515. NOBLE GASES ARE:?
Helium (He); Neon (Ne); Argon (Ar); Krypton (Kr); Xenon (Xe); Radon (Rn)
516. The largest gaseousatom?
Radon
517. The heaviest gaseous atom?
Radon
518. The only radio active gaseous element?
Radon
519. The element extracted from radioactive disintegration of radium?
Radon
520. Argon was discovered by?
Lord Rayleigh and William Ramsay
521. Lord Rayleigh and William Ramsay got Nobel Prizefor the discovery of Argon in?
1904
522. The most abundant inert gaseouselement . present in the atmosphere?
Argon
523. The gas filled in electric bulbs?
Argon
524. The anomalous metal seen in liquid form" in room temperature?
Mercury
525. The metal with lowest melting point (-39'C)?
Mercury
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