1
KCET 2022
MCQ (Single Correct Answer)
+1
-0

If wavelength of photon is $$2.2 \times 10^{-11} \mathrm{~m}$$ and $$h=6.6 \times 10^{-34} \mathrm{~J} \mathrm{~s}$$, then momentum of photon

A
$$3.33 \times 10^{-22} \mathrm{~kg} \mathrm{~ms}^{-1}$$
B
$$1.452 \times 10^{-44} \mathrm{~kg} \mathrm{~ms}^{-1}$$
C
$$6.89 \times 10^{+43} \mathrm{~kg} \mathrm{~ms}^{-1}$$
D
$$3 \times 10^{-23} \mathrm{~kg} \mathrm{~ms}^{-1}$$
2
KCET 2022
MCQ (Single Correct Answer)
+1
-0

Elements $$X, Y$$ and $$Z$$ have atomic numbers 19, 37 and 55 respectively. Which of the following statements is true about them ?

A
$$Y$$ would have an ionisation potential between those of $$X$$ and $$Z$$.
B
$$Z$$ would have the highest ionisation potential.
C
$$Y$$ would have the highest ionisation potential.
D
Their ionisation potential would increase with increasing atomic number.
3
KCET 2022
MCQ (Single Correct Answer)
+1
-0

In oxygen and carbon molecule the bonding is

A
$$\mathrm{O}_2: 2 \sigma, 0 \pi ; \mathrm{C}_2: 0 \sigma, 2 \pi$$
B
$$\mathrm{O}_2: 1 \sigma, 1 \pi ; \mathrm{C}_2: 0 \sigma, 2 \pi$$
C
$$\mathrm{O}_2: 0 \sigma, 2 \pi ; \mathrm{C}_2: 2 \sigma, 0 \pi$$
D
$$\mathrm{O}_2: 1 \sigma, 1 \pi ; \mathrm{C}_2: 1 \sigma, 1 \pi$$
4
KCET 2022
MCQ (Single Correct Answer)
+1
-0

Which is most VISCOUS?

A
Ethanol
B
Ethylene glycol
C
Glycerol
D
Methanol
EXAM MAP