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mnsoomro
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Elements which emit natural radioactivity are known as __________ ?
A. Radio elements B. Active elements C. Radioactive elements D. Nuclear elements Submitted by :- Jamil Ahmed
Alpha (α) particles are helium (He) nucleus with a charge of __________ ?
A. e B. 2e C. 3e D. 4e Submitted by :- Jamil Ahmed
The systematic name of sucrose is_______?
A. 1-α-D- glucopyranosyl-2-β-D-fructopyranoside B. 11-α-D-glucopyranosyl-2-β-D-fructofuranoside C. 1-α-D- glucofuranosyl-2-α-D- fructopyranoside D. 1-β- D- glucofuranosyl-2-α- D- fructofuranoside Submitted by :- Jamil Ahmed
How many isomeric aldoses are possible for the molecular formula C6H12O6?
A. 2 B. 4 C. 7 D.16 Submitted by :- Jamil Ahmed
The IUPAC name of pyridines is__________?
A. Azolo B. Azine C. Azolidins D. Diazine Submitted by :- Jamil Ahmed
Example of ‘globular’ proteins is __________ ?
A. Peptide B. Enzymes C. Primary protein D. Secondary proteins Submitted by :- Jamil Ahmed
A scale which used to measure the Hydrogen Ion concentration in a solution is known as__________?
A. Thermometer B. Viscometer C. pH Scale D. Stagmometer Submitted by :- Jamil Ahmed
Which Compound Destroy The OZONE ?
A. CFCs B. CH3COOH C. BOTH A & B D. None Of These Submitted by :- Saqib Ali
Which of the following is an organic compound?
[A] Carbon disulfide – CS2 [B] Carbon monoxide – CO [C] Carbon tetrabromide – CBr4 [D] Carbon tetrachloride – CCl4 Submitted by :- Muhammad…
Which of the following is the product of the reaction between Ethanoic acid and Sodium hydrogen carbonate?
[A] Ethyne [B] Sodium acetate [C] Ethanol [D] Sodium hydroxide Submitted by :- Muhammad Nawaz