1
JEE Main 2020 (Online) 9th January Evening Slot
Numerical
+4
-0
Change Language
A sample of milk splits after 60 min. at 300 K and after 40 min. at 400 K when the population of lactobacillus acidophilus in it doubles. The activa tion energy (in kJ/ mol) for this process is closest to__________.

(Given, R = 8.3 J mol–1 K–1, $$\ln \left( {{3 \over 2}} \right) = 0.4$$, e–3 = 4.0)
Your input ____
2
JEE Main 2020 (Online) 9th January Evening Slot
Numerical
+4
-0
Change Language
The sum of the total number of bonds between chromium and oxygen atoms in chromate and dichromate ions is ____________.
Your input ____
3
JEE Main 2020 (Online) 9th January Evening Slot
Numerical
+4
-0
Change Language
10.30 mg of O2 is dissolved into a liter of sea water of density 1.03 g/mL. The concentration of O2 in ppm is__________.
Your input ____
4
JEE Main 2020 (Online) 9th January Evening Slot
Numerical
+4
-0
Change Language
Consider the following reactions

JEE Main 2020 (Online) 9th January Evening Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 135 English
The mass percentage of carbon in A is ______.
Your input ____
JEE Main Papers
2023
2021
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12