• Chemistry - Section 1

The nucleus of a hydrogen atom consists of

A. 1 proton only
B. 1 प्रोटॉन + 2 न्यूट्रॉन
C. केवल 1 न्यूट्रॉन
D. केवल 1 इलेक्ट्रॉन


The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is

A. 2.05 gram
B. 3.05 ग्राम
C. 4.05 ग्राम
D. 5.05 ग्राम


The octane number of zero is assigned to

A. 2-methyl octane
B. एन हेपटैन
C. आईएसओ ओकटाइन
D. 3-मिथाइल ऑक्टेन


The heat required to raise the temperature of body by 1 K is called

A. specific heat
B. थर्मल क्षमता
C. पानी बराबर
D. इनमे से कोई भी नहीं


The metal that is used as a catalyst in the hydrogenation of oils is

A. Ni
B. पंजाब
C. घन
D. पं