What is the concentration of OH− in a solution with an H+ concentration of 1.3 × 10^−4 M?

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#Question id: 8915

#XL - T Zoology

The number of legs an insect has, the number of vertebrae in a vertebral column, or the number of joints in a digit (such as a finger) are all strongly influenced by

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#Question id: 12026

#XL - T Zoology

Pepsinogen is converted to its active form in the stomach by ________.

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#Question id: 15228

#XL - Q Biochemistry

Capillary electrophoresis (CE) is based on principle of 

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#Question id: 919

#XL - Q Biochemistry

Carnitine is:

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#Question id: 11384

#XL - R Botany

Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in size respectively, but have the same number of species. Which of the following statements can independently explain this observation?

(i) P is closer to the mainland than Q

(ii) P is further away from the mainland than Q

(iii) P has higher speciation rates than Q

(iv) P has lower speciation rates than Q