The whole universe is made up of almost _______of Hydrogen?

A. 50%
B. 60%
C. 70%
D. 80%

Submitted by: Aamir khan Hullio

Related Mcqs:

Water Gas is a mixture of two gases Hydrogen & Carbon monoxide, while separating Hydrogen gas by liquification process which one is liquefied first__?
A. Hydrogen Gas
B. Carbon Monoxide Gas
C. Both at same time
D. None of them

Submitted by: Aamir khan Hullio
Water Gas is a mixture of two gases Hydrogen & Carbon monoxide, while separating Hydrogen gas by liquification process which one is liquefied first__?
A. Hydrogen Gas
B. Carbon Monoxide Gas
C. Both at same time
D. None of them

Submitted by: Aamir khan Hullio
Universe is almost 70% made up of __________?
A. Helium
B. Hydrogen
C. Chlorine
D. Carbon

Submitted by: Aamir khan Hullio
In whole Periodic Table which element Is Most Reducing Agent ?
A. Chlorine
B. lithium
C. Helium
D. Neon

Submitted by: Ali Jan
Which one of the following does not show hydrogen bonding?
A. Water
B. Ethyl alcohol
C. Phenol
D. Diethyl ether
Regular coiling or zigzagging of polypeptide through hydrogen bonding is its_______________?
A. Quantum structure
B. Secondary structure
C. Tertiary structure
D. Primary structure
Best position of hydrogen in the periodic table is above I.A Group which is mainly due to_______________?
A. Both are electropositive
B. Similar outer most shell electronic configuration
C. Both form ionic compounds
D. All
Which compound shows hydrogen bonding ?
A. C2H6
B. C2H5Cl
C. CH3OCH3
D. C2H5OH
When an aldehyde is reacted with hydrogen cyanide a ” Cyanihydrin” is formed. This process is best termed as __________?
A. Electrophilic addition
B. Electrophilic substitution
C. Nucleophilic addition
D. Necleophilic substitution

Submitted by: Muhammad Ali Kunbhar
If a compound contains 24 gram of carbon 2 gram of hydrogen and 64 gram of oxygen then its empirical formula will be________?
A. C2H2O4
B. CH2
C. CH2O
D. CHO2

Submitted by: Raza Samejo