CHEMISTRY

 

1. The hardest form of carbon is

A. coke

B. graphite

C. diamond

D. charcoal

2. The number of g-molecule of oxygen in 6.02 x 1024CO molecules is

A. 1 gram of molecule

B. 0.5 gram of molecule

C. 5 gram of molecule

D. 10 gram of molecule

3. The most extensive, commercially useful source of thorium as monazite sand occurs in India at

A. Orissa coast

B. Travancore coast

C. West Bengal coast

D. Gujarat coast

4. The main active constituent of tea and coffee is

A. nicotine

B. chlorophyll

C. caffeine

D. aspirin

5. The maximum number of isomers for an alkene with molecular formula C4H8 is

A. 5

B. 4

C. 2

D. 3

6. The metal does not give H2 on treatment with dilute HCL is

A. Zn

B. Fe

C. Ag

D. Ca

ANSWERS:

1.Answer: Option C

2.Answer: Option C

3.Answer: Option B

4.Answer: Option C

5.Answer: Option B

6.Answer: Option C

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Milan Tomic

Hi. I’m Designer of Blog Magic. I’m CEO/Founder of ThemeXpose. I’m Creative Art Director, Web Designer, UI/UX Designer, Interaction Designer, Industrial Designer, Web Developer, Business Enthusiast, StartUp Enthusiast, Speaker, Writer and Photographer. Inspired to make things looks better.

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