1
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1
Which one of the following statements is correct?
A
Hemichordata is not a chordate sub-phylum because it has a water vascular system.
B
Hemichordata is a chordate sub-phylum with a proto-notochord called stomochord.
C
Hemichordata is a chordate sub-phylum with a proper notochord and gill slits.
D
Hemichordata is not a chordate sub-phylum, with a proto-notochord called stomochord.
2
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1

Which of the following statements is correct about the oxygen $\left(\mathrm{O}_2\right)$ dissociation curves A and C relative to curve B ?

IAT (IISER) 2024 Biology - Breathing and Exchange of Gases Question 1 English
A
Curve C represents favourable $\mathrm{O}_2$ association with haemoglobin at low $\mathrm{pCO}_2$.
B
Curve A represents favourable $\mathrm{O}_2$ association with haemoglobin at low pH .
C
Curve A represents favourable $\mathrm{O}_2$ association with haemoglobin at low pH .
D
Curve C represents favourable $\mathrm{O}_2$ association with haemoglobin at high $\mathrm{pO}_2$.
3
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1
If an element with $Z=120$ is discovered, then which group of elements will it belong to?
A
Noble gases
B
Halogens
C
Alkali metals
D
Alkaline earth metals
4
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1
Which one of the following statements is correct about $\mathrm{N}_2, \mathrm{CO}$, and $\mathrm{NO}^{+}$?
A
These are isoelectronic and have identical bond order.
B
These are isoelectronic and have different bond orders.
C
These are not isoelectronic but have identical bond order.
D
These are neither isoelectronic nor have identical bond order.
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