NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 202 - 207 of 3111

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Question 202

Question MCQ▾

Which of the following compound does not exist?

Choices

Choice (4)Response

a.

b.

c.

d.

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Question 203

Question MCQ▾

Bauxite ore is generally contaminated with impurity of oxides of two elements E1and E2. Which of the following statements is correct?

Choices

Choice (4)Response

a.

E1 is a non-metal and belongs to 3rd period while E2 is a metal and belong to fourth period

b.

One of the two oxides has three dimensional polymeric structures

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

Edit

Question 204

Question MCQ▾

The general formula of cyclic or ring silicates is?

Choices

Choice (4)Response

a.

b.

c.

d.

Both b. and c. are correct

Edit

Question 205

Question MCQ▾

Boron has an unusually high melting point due to?

Choices

Choice (4)Response

a.

Very strong crystalline lattice

b.

Allotropy

c.

Smaller size than beryllium

d.

Inert pair effect

Edit

Question 206

Question MCQ▾

The state of hybridization of the central atom and the number of lone pairs over the central atom in POCl3 are?

Choices

Choice (4)Response

a.

b.

c.

d.

Edit

Question 207

Question MCQ▾

Lime water is formed milky on passing CO2 with the formation of?

Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

Edit