# NCERT Class 12-Mathematics: Chapter –9 Differential Equations Part 16

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**Question 68:**

The order and degree of the differential equation are

(A)

(B)

(C)

(D)

**Answer: (C)**

**Question 69:**

The differential equation of the family of curves is:

(A)

(B)

(C)

(D)

**Answer: (C)**

**Question 70:**

Which of the following is the general solution of

(A)

(B)

(C)

(D)

**Answer: (A)**

**Question 71:**

General solution of is:

(A)

(B)

(C)

(D)

**Answer: (A)**

**Question 72:**

Solution of the differential equation is

(A)

(B)

(C)

(D)

**Answer: (A)**

**Question 73:**

The general solution of the differential equation is:

(A)

(B)

(C)

(D)

**Answer: (C)**

**Question 74:**

The solution of the differential equation is:

(A)

(B)

(C)

(D)

**Answer: (B)**

**Question 75:**

The solution of the differential equation is:

(A)

(B)

(C)

(D)

**Answer: (A)**