1
MHT CET 2023 11th May Evening Shift
+1
-0

What is the value of percent atom economy when an organic compound of formula weight $$75 \mathrm{~u}$$ is obtained from reactants having sum formula weight $$225 \mathrm{~u}$$ ?

A
13.5
B
33.3
C
40.4
D
70.5
2
MHT CET 2023 11th May Evening Shift
+1
-0

Which from following substances consists of total 1 mole atoms in it? (Molar mass of $$\mathrm{NH}_3=17, \mathrm{H}_2 \mathrm{O}=18, \mathrm{~N}_2=28, \mathrm{CO}_2=44$$ )

A
$$4.25 \mathrm{~g} \mathrm{~NH}_3$$
B
$$1.8 \mathrm{~g} \mathrm{~H}_2 \mathrm{O}$$
C
$$2.8 \mathrm{~g} \mathrm{~N}_2$$
D
$$4.4 \mathrm{~g} \mathrm{~CO}_2$$
3
MHT CET 2023 10th May Evening Shift
+1
-0

How many moles of nitrogen atoms are present in $$8 \mathrm{~g}$$ of ammonium nitrate?

(Molar mass of ammonium nitrate $$=80$$ )

A
$$0.1 \mathrm{~mol}$$
B
$$0.2 \mathrm{~mol}$$
C
$$0.4 \mathrm{~mol}$$
D
$$0.8 \mathrm{~mol}$$
4
MHT CET 2023 10th May Evening Shift
+1
-0

Calculate the $$\mathrm{pH}$$ of a buffer solution containing $$0.01 ~\mathrm{M}$$ salt and $$0.004 \mathrm{~M}$$ weak acid.

$$\left(\mathrm{pK}_{\mathrm{a}}=4.762\right)$$

A
4.36
B
4.76
C
5.16
D
5.36
EXAM MAP
Medical
NEET
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
CBSE
Class 12